play_on_sonos:
  description: Play music hosted on a Plex server on a linked Sonos speaker.
  fields:
    entity_id:
      description: Entity ID of a media_player from the Sonos integration.
      example: "media_player.sonos_living_room"
    media_content_id:
      description: The ID of the content to play. See https://www.home-assistant.io/integrations/plex/#music for details.
      example: >-
          '{ "library_name": "Music", "artist_name": "Stevie Wonder" }'
    media_content_type:
      description: The type of content to play. Must be "music".
      example: "music"