diff --git a/api/api/db/alembic/env.py b/api/api/db/alembic/env.py
index 35709fa..190c21d 100644
--- a/api/api/db/alembic/env.py
+++ b/api/api/db/alembic/env.py
@@ -7,7 +7,7 @@ from sqlalchemy import pool
 
 from alembic import context
 
-from api.db import metadata
+from api.db import metadata, tables
 
 # this is the Alembic Config object, which provides
 # access to the values within the .ini file in use.
diff --git a/api/api/db/sql_types.py b/api/api/db/sql_types.py
new file mode 100644
index 0000000..f988d5a
--- /dev/null
+++ b/api/api/db/sql_types.py
@@ -0,0 +1,18 @@
+__all__ = ["BigIntegerPK", "SAEnum", "UnsignedInt"]
+
+from typing import Any
+
+from sqlalchemy import BigInteger, Enum, Integer
+from sqlalchemy.dialects import mysql
+
+
+# class SAEnum(Enum):
+#     def __init__(self, *enums: object, **kw: Any):
+#         validate_strings = kw.pop("validate_strings", True)
+#         super().__init__(*enums, **kw, validate_strings=validate_strings)
+
+
+# # https://docs.sqlalchemy.org/en/20/dialects/sqlite.html#allowing-autoincrement-behavior-sqlalchemy-types-other-than-integer-integer
+
+# BigIntegerPK = BigInteger().with_variant(Integer, "sqlite")
+UnsignedInt = Integer().with_variant(mysql.INTEGER(unsigned=True), "mysql")
diff --git a/api/api/db/tables/account.py b/api/api/db/tables/account.py
index 07ffe3f..46b5e71 100644
--- a/api/api/db/tables/account.py
+++ b/api/api/db/tables/account.py
@@ -1,6 +1,12 @@
-from sqlalchemy import Table, Column, Integer, String, Enum as SQLAEnum, JSON, ForeignKey, DateTime, Index, MetaData
+from sqlalchemy import Table, Column, Integer, String, Enum as SQLAEnum, JSON, ForeignKey, DateTime, Index
 from sqlalchemy.sql import func
+
+from datetime import datetime, timedelta
+
 from enum import Enum, auto
+
+from api.db.sql_types import UnsignedInt
+
 from api.db import metadata
 
 
@@ -20,14 +26,14 @@ class AccountStatus(str,Enum):
 
 account_table = Table(
     'account', metadata,
-    Column('id', Integer, primary_key=True, autoincrement=True),
+    Column('id', UnsignedInt, primary_key=True, autoincrement=True),
     Column('name', String(100), nullable=False),
     Column('login', String(100), nullable=False),
     Column('email', String(100), nullable=True),
     Column('bind_tenant_id', String(40), nullable=True),
     Column('role', SQLAEnum(AccountRole), nullable=False),
     Column('meta', JSON, default={}),
-    Column('creator_id', Integer, ForeignKey('account.id'), nullable=True),
+    Column('creator_id', UnsignedInt, ForeignKey('account.id'), nullable=True),
     Column('created_at', DateTime(timezone=True), server_default=func.now()),
     Column('status', SQLAEnum(AccountStatus), nullable=False),
 
@@ -48,10 +54,20 @@ class KeyStatus(str,Enum):
 
 account_keyring_table = Table(
     'account_keyring', metadata,
-    Column('owner_id', Integer, ForeignKey('account.id'), primary_key=True, nullable=False),
+    Column('owner_id', UnsignedInt, ForeignKey('account.id'), primary_key=True, nullable=False),
     Column('key_type', SQLAEnum(KeyType), primary_key=True, nullable=False),
     Column('key_id', String(40), default=None),
     Column('key_value', String(64), nullable=False),
     Column('created_at', DateTime(timezone=True), server_default=func.now()),
     Column('expiry', DateTime(timezone=True), nullable=True),
     Column('status', SQLAEnum(KeyStatus), nullable=False), )
+
+
+def set_expiry_for_key_type(key_type: KeyType) -> datetime:
+    match key_type:
+        case KeyType.ACCESS_TOKEN:
+            return datetime.now() + timedelta(hours=1)  # 1 hour
+        case KeyType.REFRESH_TOKEN:
+            return datetime.now() + timedelta(days=365)  # 1 year
+        case KeyType.API_KEY:
+            return datetime.max  # max datetime
diff --git a/api/api/db/tables/events.py b/api/api/db/tables/events.py
index 51179cf..cc33c06 100644
--- a/api/api/db/tables/events.py
+++ b/api/api/db/tables/events.py
@@ -1,6 +1,9 @@
 from sqlalchemy import Table, Column, Integer, String, Enum as SQLAEnum, JSON, ForeignKey, DateTime, Index
 from sqlalchemy.sql import func
 from enum import Enum, auto
+
+from api.db.sql_types import UnsignedInt
+
 from api.db import metadata
 
 class EventState(str, Enum):
@@ -15,10 +18,10 @@ class EventStatus(str, Enum):
 
 list_events_table = Table(
     'list_events', metadata,
-    Column('id', Integer, primary_key=True, autoincrement=True),
+    Column('id', UnsignedInt, primary_key=True, autoincrement=True),
     Column('name', String(40, collation='latin1_bin'), nullable=False),
     Column('title', String(64), nullable=False),
-    Column('creator_id', Integer, ForeignKey('account.id'), nullable=False),
+    Column('creator_id', UnsignedInt, ForeignKey('account.id'), nullable=False),
     Column('created_at', DateTime(timezone=True), server_default=func.now()),
     Column('schema', JSON, default={}),
     Column('state', SQLAEnum(EventState), nullable=False),
diff --git a/api/api/db/tables/process.py b/api/api/db/tables/process.py
index 0d98353..16bdef3 100644
--- a/api/api/db/tables/process.py
+++ b/api/api/db/tables/process.py
@@ -1,6 +1,9 @@
 from sqlalchemy import Table, Column, Integer, String, Text, Enum as SQLAEnum, JSON, ForeignKey, DateTime, Index, PrimaryKeyConstraint
 from sqlalchemy.sql import func
 from enum import Enum, auto
+
+from api.db.sql_types import UnsignedInt
+
 from api.db import metadata
 
 
@@ -14,11 +17,11 @@ class ProcessStatus(str, Enum):
 # Определение таблицы process_schema
 process_schema_table = Table(
     'process_schema', metadata,
-    Column('id', Integer, primary_key=True, autoincrement=True),
+    Column('id', UnsignedInt, primary_key=True, autoincrement=True),
     Column('title', String(100), nullable=False),
     Column('description', Text, nullable=False),
-    Column('owner_id', Integer, ForeignKey('account.id'), nullable=False),
-    Column('creator_id', Integer, ForeignKey('account.id'), nullable=False),
+    Column('owner_id', UnsignedInt, ForeignKey('account.id'), nullable=False),
+    Column('creator_id', UnsignedInt, ForeignKey('account.id'), nullable=False),
     Column('created_at', DateTime(timezone=True), server_default=func.now()),
     Column('settings', JSON, default={}),
     Column('status', SQLAEnum(ProcessStatus), nullable=False),
@@ -28,12 +31,13 @@ process_schema_table = Table(
 
 process_version_archive_table = Table(
     'process_version_archive', metadata,
-    Column('id', Integer, autoincrement=True, nullable=False),
-    Column('version', Integer, default=1, nullable=False),
+    Column('id', UnsignedInt, autoincrement=True, nullable=False),
+    Column('ps_id', UnsignedInt, ForeignKey('process_schema.id'), nullable=False),
+    Column('version', UnsignedInt, default=1, nullable=False),
     Column('snapshot', JSON, default={}),
-    Column('owner_id', Integer, ForeignKey('account.id'), nullable=False),
+    Column('owner_id', UnsignedInt, ForeignKey('account.id'), nullable=False),
     Column('created_at', DateTime(timezone=True), server_default=func.now()),
-    Column('is_last', Integer, default=0),
+    Column('is_last', UnsignedInt, default=0),
     PrimaryKeyConstraint('id', 'version') )
 
 class NodeStatus(str, Enum):
@@ -48,11 +52,11 @@ class NodeType(Enum):
 
 ps_node_table = Table(
     'ps_node', metadata,
-    Column('id', Integer, autoincrement=True, primary_key=True, nullable=False),
-    Column('ps_id', Integer, ForeignKey('process_schema.id'), nullable=False),
+    Column('id', UnsignedInt, autoincrement=True, primary_key=True, nullable=False),
+    Column('ps_id', UnsignedInt, ForeignKey('process_schema.id'), nullable=False),
     Column('node_type', SQLAEnum(NodeType), nullable=False),
     Column('settings', JSON, default={}),
-    Column('creator_id', Integer, ForeignKey('account.id'), nullable=False),
+    Column('creator_id', UnsignedInt, ForeignKey('account.id'), nullable=False),
     Column('created_at', DateTime(timezone=True), server_default=func.now()),
     Column('status', SQLAEnum(NodeStatus), nullable=False),
 
@@ -67,12 +71,12 @@ class NodeLinkStatus(str, Enum):
 
 node_link_table = Table(
     'node_link', metadata,
-    Column('id', Integer, autoincrement=True, primary_key=True, nullable=False),
+    Column('id', UnsignedInt, autoincrement=True, primary_key=True, nullable=False),
     Column('link_name', String(20), nullable=False),
-    Column('node_id', Integer, ForeignKey('ps_node.id'), nullable=False),
-    Column('next_node_id', Integer, ForeignKey('ps_node.id'), nullable=False),
+    Column('node_id', UnsignedInt, ForeignKey('ps_node.id'), nullable=False),
+    Column('next_node_id', UnsignedInt, ForeignKey('ps_node.id'), nullable=False),
     Column('settings', JSON, default={}),
-    Column('creator_id', Integer, ForeignKey('account.id'), nullable=False),
+    Column('creator_id', UnsignedInt, ForeignKey('account.id'), nullable=False),
     Column('created_at', DateTime(timezone=True), server_default=func.now()),
     Column('status', SQLAEnum(NodeLinkStatus),nullable=False),