We have looked many times but still unable to get a proper solution.
We don't have any solution for the same entry in multisite.
We faced many roadblocks like matching subscription for users in multiple sites.
For now, we can do it in this manner.
- Install the given plugin in the old reply.
- remove all users.
- add users again.
This will solve all the issues.
But I will suggest you, before checking it on live setup, please check it on local setup.