Can I switch my "Sign-in ID" to another service account?

A209 You cannot switch "Sign-in ID" between Facebook account and Sony Entertainment(SEN) account, while maintaining your news subscription settings, social service settings, and bookmarks.
You have to remove your existing account of Socialife, and create a new one with your desired service account.
In this case, you need to set up Socialife from the scratch as all the settings will be initialized.

How to remove your account of Socialife.