Spotify basic automation play/pause missing data.media_content_id

My spotify integrations got messed up after adding a second bunch of speakers. Now I can’t figure out how it worked.

I have a basic symfonisk remote whose play/pause I need to trigger spotify directly, since I could be playing it via the tv in the living room or the bedroom or the living room without the tv. I seem to need a media_content_id and I’m not sure what that should be.

From the documentation it seems that I need to have a link to a song/playlist or whatever, but I don’t think I ever linked my previous automation to any particular media. It took whatever it was last set to: whether via my phone or laptop. Is there a way to do this with an “automatic” content_id or just trigger the functionality instead of “calling a service”?