Controlling dummy switches

[heyandy1st]

I have several virtual switches using "dummy" (https://github.com/nfarina/homebridge-dummy#readme) and everytime I try to send a set to the switch I am getting back "not found".

This is the message I publish to the /homebridge/to/set topic:
{"name": "DummySwitchName", "service_name": "DummySwitch", "characteristic": "On", "value": true}

I have tried various versions of service_name that I can see in the javascript at the above GIT repository, but so far still no luck.

I am sure I am missing something "simple", any thoughts?