diff --git a/backend/app/model/__init__.py b/backend/app/model/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/app/model/user_model.py b/backend/app/model/user_model.py
new file mode 100644
index 0000000..c85b89f
--- /dev/null
+++ b/backend/app/model/user_model.py
@@ -0,0 +1,32 @@
+from pydantic import BaseModel, EmailStr, Field
+from typing import Optional, List
+from datetime import datetime
+
+class User(BaseModel):
+    id: str = Field(..., description="Unique identifier for the user")
+    email: EmailStr = Field(..., description="User's email address")
+    username: str = Field(..., min_length=3, max_length=50, description="User's chosen username")
+    password_hash: str = Field(..., description="Hashed password")
+    full_name: Optional[str] = Field(None, description="User's full name")
+    is_active: bool = Field(default=True, description="Whether the user account is active")
+    created_at: datetime = Field(default_factory=datetime.utcnow, description="Timestamp of account creation")
+    last_login: Optional[datetime] = Field(None, description="Timestamp of last login")
+    watch_history: List[str] = Field(default_factory=list, description="List of IDs of watched content")
+    bookmark: List[str] = Field(default_factory=list, description="List of IDs of content in bookmarks")
+
+    class Config:
+        allow_population_by_field_name = True
+        schema_extra = {
+            "example": {
+                "id": "user123",
+                "email": "user@example.com",
+                "username": "netflixfan",
+                "password_hash": "hashed_password_here",
+                "full_name": "John Doe",
+                "is_active": True,
+                "created_at": "2023-01-01T00:00:00",
+                "last_login": "2023-07-16T12:30:00",
+                "watch_history": ["movie123", "series456"],
+                "bookmark": ["movie789", "series101"]
+            }
+        }
\ No newline at end of file