How to delete user and it's all entire data (threads and related messages)

[anonym24]

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How to delete user and it's all entire data (threads and related messages)

My app allows logout and deleting profile. So I need to delete ChatSDK user as well, or at least it's all related data (threads and related messages). Because such user can sign up again with the same email and in such case old threads and messages will be available again