Remove/Update Secondary contact from Incident via API call

Summary

Remove/Update Secondary contact from Incident via API call

Content

Hi everyone,

We have a need to remove/update secondary contact from incident via API. I am using Postman. 

I found a way to add secondary contact to incident:

Endpoint: https://<your_site>.services/rest/connect/v1.4/incidents/<incident_id>/otherContacts/
HTTP Method: PATCH
Header: OSvC-CREST-Application-Context: 123
JSON Payload:

     {
           "id": 12345  -> (contacts id)
     }

In other words API call should simulate 'Remove' action under Secondary Contacts tab ( screen shot attached)  

Would really appreciate if anyone could provide solution to remove and update secondary contact from incident via API. 

Thanks in advance,