Hi Ashutosh,
Launch "SAP Cloud Applications studio",
login to C4C tenant,
go to menu "View" , "Repository Explorer",
go to tab "Inbound Service Interfaces",
select ManageCustomerIn:
you would see the details also with example.
You could also select ManageContactIn to see the details.
Note:
set actionCode = "02" to update, and "03" to delete.
Thanks, Pradeep.