Bug fixes

Based on the first day of dogfooding for myself

token_bot/persistant_database/user_schema.py

@@ -18,21 +18,24 @@ class User:
     def __eq__(self, other):
         return self.user_id == other.user_id
 
+    def __hash__(self):
+        return hash(self.user_id)
+
     @classmethod
     def from_item(cls, primary_key: int, region: Region, subscribed_alerts: List[str]) -> 'User':
         alerts = [pdb.Alert.from_str(alert_str) for alert_str in subscribed_alerts]
         return cls(primary_key, region, alerts)
 
     @property
-    def primary_key(self) -> int:
-        return self.user_id
+    def primary_key(self) -> str:
+        return str(self.user_id)
 
     @property
     def primary_key_name(self) -> str:
         return 'user_id'
 
     @property
-    def key(self) -> Dict[str, int]:
+    def key(self) -> Dict[str, str]:
         return {
             self.primary_key_name: self.primary_key
         }