Please guide me what event data should we send in order to achieve this.
I believe Analytics Events, which will be able to include additional information or metadata, will be a good fit.
Maybe this will be a good introduction.
https://download.milestonesys.com/MIPSDK/Samples/TriggerAlarmFromExternal-ConceptSolution.pdf
Thanks @Bo Ellegård Andersen (Milestone Systems) it seems like exactly what I was looking for.