diff --git a/src/lib/server/user.ts b/src/lib/server/user.ts
index b20f1ef..0b7bf9d 100644
--- a/src/lib/server/user.ts
+++ b/src/lib/server/user.ts
@@ -1,16 +1,5 @@
 import { db } from "./db"
-
-type UserDocument = {
-  _id?: any
-  registUA: string
-  createdAt: Date
-  sessions: string[]
-  syncCode?: string
-  syncCodeCreated?: Date
-
-  // User data
-  data?: any
-}
+import type { UserDocument } from "../../shared/types.ts";
 
 const users = db.collection<UserDocument>("users")
 
diff --git a/src/shared/types.ts b/src/shared/types.ts
index 08dd9a8..31b8d9e 100644
--- a/src/shared/types.ts
+++ b/src/shared/types.ts
@@ -43,3 +43,20 @@ export interface GameStats {
     startTime: number
     totalTime: number
 }
+
+export interface UserDocument {
+  _id?: any
+  registUA: string
+  createdAt: Date
+  sessions: string[]
+  syncCode?: string
+  syncCodeCreated?: Date
+
+  // User data
+  data?: UserData
+}
+
+export interface UserData {
+    myPlaylists?: number[]
+    playHistory?: GameStats[]
+}
\ No newline at end of file