Best way to list presences with one-to-many relationship


Say I have a one-to-many relation between accounts and chat_rooms.

Each user connects to a chat_room topic like room:123.

For each account, I want to list the presence state of the associated chat rooms.

My question is how to best set up such an association. Initially I thought I could put the account_id inside the metadata, but thought that maybe a cleaner/better solution existed.

Any ideas?

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