2nd gen rooted box logging out good play store account?

I seem to always have an issue with logging out of my account on these rooted fire tv boxes without having to completely uninstall google play store. And it's more difficult now that there is this new rooting method with the special verison of google play store I can't simply delete the google play store. Is there a way to log into a different account on google play store if I want to give this box to someone else?

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