By subscribing to a Creators' Cloud membership, you can use the various features pertaining to Sony digital cameras. A Sony Account is required when subscribing to a Creators' Cloud membership. A Sony Account is used not only for the Creators' Cloud membership but also for PlayStation and other included Sony services.
You can cancel your membership in the Monitor & Control app, or on the website. Note that, the following methods will only delete your Creators' Cloud membership; your Sony Account will remain active.
Canceling in the app
First, sign in to the account that you want to cancel. Then select (Menu) → [Settings/Support] → [Account] → [Unregister the Creators' Cloud Membership].
Unregister from all services that you have registered for using your Sony Account. When you are no longer registered for any services, your Sony Account will be automatically deleted.