This is implementation on [ENG-9604#comment-0ef625dd](https://linear.app/comm/issue/ENG-9604/update-the-backup-handler-lifecycle-for-minimal-version-of-backup#comment-0ef625dd).
Similar to D14024.
We need to keep in mind to handle this also in the future, when working on User Data restore, for now we download only User Keys which are unauthenticated, and there is no code for User Data yet.
Depends on D14024