Samsung 930B soundbar how to execute audioNotification->playTrack command

I have a question about SmartThings API:
I have a 930B Samsung soundbar which I control via this API (power on, volume up/down, next/previous song), unfortunately I am not able to run the audioNotification->playTrack command correctly. The soundbar is connected to the Spotify account, execution of the mediaPlayback->play command starts playing the sound from Spotify (the last played song so it works correctly).
How to run particular track from spotify?

Example URI which I am trying to play: spotify:track:5wQnmLuC1W7ATsArWACrgW

I am not able start track even from web UI.