diff --git a/app/schemas/base_schemas.py b/app/schemas/base_schemas.py
index 1940af1..2ade802 100644
--- a/app/schemas/base_schemas.py
+++ b/app/schemas/base_schemas.py
@@ -1,5 +1,5 @@
-from pydantic import BaseModel
-
+from pydantic import BaseModel, Field
+from bson.objectid import ObjectId
 
 class User(BaseModel):
     user_id: int
@@ -14,4 +14,26 @@ class User(BaseModel):
     disliked_post_ids: list[int] = list()
     comments_ids: list[int] = list()
 
-    registration_date: str
\ No newline at end of file
+    registration_date: str
+
+class Card(BaseModel):
+    card_id: ObjectId = Field(alias="_id")
+
+    choice_A: str
+    choice_B: str
+
+    count_choice_A: int = 0
+    count_choice_B: int = 0
+    count_total: int = 0
+
+    count_likes: int = 0
+    count_dislikes: int = 0
+    comments: list[int] = list()
+
+    author_id: int
+    creation_date: str
+    moderation_date: str = "Not moderated"
+    active_status: bool = False
+
+    class Config:
+        arbitrary_types_allowed = True
\ No newline at end of file