You can download (and copy) your profile data, relay and the following list.
Restore your previous data either by uploading the file (.json) or pasting the same data into the restore field.
Backup and Restore using files (JSON)
Backup and Restore using clipboard (raw data; JSON)
Copy only the profile (raw data; JSON)
Restoring your old following data will merge it with your current version.
The profile data is restored only if it's the latest version (event).
All other events are republished (not posted as new).