How to switch a Nuki lock to night mode via MQTT?

I have a Nuki 3.0 Pro lock, connected to Home Assistant via MQTT. The basic functions (lock, unlock) work great.

My problem: I do not see the Night Mode" action in the list of available ones as advertised by the lock. There may be two reasons for that:

  • I missed it somehow
  • it is not implemented in MQTT (← most likely)

Has anyone successfully triggered this mode? Or, alternatively, triggered the deep sleep mode (which could simply be chained in an automation)