Split schema for provider and provider history

app/schemas.py

@@ -169,9 +169,19 @@ class ProviderDetailsSchema(BaseSchema):
         strict = True
 
 
-class ProviderDetailsHistorySchema(ProviderDetailsSchema):
+class ProviderDetailsHistorySchema(BaseSchema):
+    created_by_user = fields.Nested(
+        UserSchema,
+        attribute='created_by',
+        dump_to='created_by',
+        only=['id', 'name', 'email_address'],
+        dump_only=True
+    )
+
     class Meta:
         model = models.ProviderDetailsHistory
+        exclude = ("provider_rates", "provider_stats")
+        strict = True
 
 
 class ServiceSchema(BaseSchema):