All the records create using CloudKit-related code can be previewed, edited and even removed in CloudKit Dashboard. To access CloudKit Dashboard, go here.
There are several parts in the dashboard:
Here, you get a list of all the existing record types in the app. When you first open CloudKit Dashboard for an app, there’s a record type called Users there, which you can use it or just delete it and use your own.
In this page, you could make your data typed manually. Of course, in most cases this is pointless, because iOS SDK can handle it way better than the dashboard, but the functionality is also there if you prefer. The most use of this page is for previewing types.