сделал id медиа изменяемым полем в админке

api/admin.py

@@ -12,7 +12,7 @@ class AccountAdmin(admin.ModelAdmin):
 @admin.register(Media)
 class MediaAdmin(admin.ModelAdmin):
     list_display = ['id', 'owner', 'storage_name', 'original_name']
-    readonly_fields = ['id', 'upload_datetime']
+    readonly_fields = ['upload_datetime']
 
 @admin.register(ExecutorAccount)
 class ExecutorAccountAdmin(admin.ModelAdmin):