Add ExtensionId to message-store phone number objects

I'm listening to the /account/~/extension/~/message-store/instant?type=SMS webhook events, to obtain inbound text messages per extension. I have ALL extensions on my account coming into one endpoint.

It'd also follow a 'standard' thats close to the Telephony events.

Current:

"body": {
   "id": "{sms id}",
   "to": [{
      "phoneNumber": "{my phone number}",
      "name": "{my name}",
      "location": "{approx phone location}",
      "target": true
   }],
   "from": {
      "phoneNumber": "{their phone number}",
      "location": "{approx phone location}"
   }
}

Idea/Proposal:

"body": {
   "id": "{sms id}",
   "to": [{
      "extensionId": "{my extension id}",  <---- just need add this
      "phoneNumber": "{my phone number}",
      "name": "{my name}",
      "location": "{approx phone location}",
      "target": true
   }],
   "from": {
      "phoneNumber": "{their phone number}",
      "location": "{approx phone location}"
   }
}