Un-assign myself from issues, messages and requests in shared projects that I no longer belong

I was removed from an organization’s GitLab and shared folders. The owning organization has gone into hibernation, so there is no support from the org. I still have messages, issues, and assignments associated with projects in the shared folders. I don’t have access to these entities, but I would like to remove myself, so that my notifications are cleaned up.

Is there any solution?

Thank you!