is it possible to send updates from OFSC to OSVC via message scenario (without any middleware)

Summary:

I wanted to send activity status and other key details to OSVC when activity moved, started, completed, incomplete etc. I've created a channel in message scenario, In URL Path - I'm using /services/rest/connect/latest/tasks/{id}.

How 'id' will be passed dynamically ? is it a right approach?

For instance, Then created scenario step under Activity Started launch condition. Under pattern I'm using 

{ 

 "statusWithType":{

 "status":{

  "id":17

 }

 }  

}

But the update is not reflected in OSVC. Once the activity started, in scenario step it's still showing 1 in queue.

PFA screenshots. Kindly let me know if anyone tried and succeeded.