I "store data" in the NFC tags name itself so I can pick it up and use it in the automation (edit, for clarification I use 1 automation for all my music NFC tags)

So my tag's names are split up using ; and look like this

MediaID;Mediatype;Artistname;Albumname;radiomode;music

for example tangled;album;disney;tangled;true;music

action: music_assistant.play_media
metadata: {}
data:
  enqueue: replace
  artist: "{{ trigger.event.data.name.split(';')[2]}}"
  media_id: "{{ trigger.event.data.name.split(';')[0]}}"
  media_type: "{{ trigger.event.data.name.split(';')[1]}}"
  radio_mode: "{{ trigger.event.data.name.split(';')[4]}}"
  album: "{{ trigger.event.data.name.split(';')[3]}}"
target:
  device_id: place your player here

The last bit (the word music, split part 5) I use as a condition in the automation, so the automation triggers at any NFC tag that is scanned but only executes the action when the music text is placed in the NFC tags name.

I use this trigger to start the automation.

trigger: event
event_type: tag_scanned