Bose media player preselection keys

Configuration
1

Hello,
I use Hass.io on Raspberry and I have inserted a media-player card for my Bose SoundTouch30, but in no way can I insert the preset buttons.
I followed the instructions by inserting the following code in the configuration file:

Example configuration.yaml

media_player:

  • platform: soundtouch
    host: 192.168.x.x
    port: 8090
    name: Soundtouch Living Room

this works!

but by entering this:

Play media presets

  • service: media_player.play_media
    date:
    entity_id: media_player.soundtouch_living_room
    media_content_id: 1…6
    media_content_type: PLAYLIST

does not work!

What am I doing wrong?

Thank you.