{
  "request": {
    "method": "POST",
    "url": "https://tapi.telstra.com/v2/messages/provisioning/subscriptions",
    "headers": {
      "Authorization": "Bearer <access_token>",
      "Content-Type": "application/json"
    },
    "body": {
      "activeDays": 30,
      "notifyURL": "https://example.com/telstra/inbound",
      "callbackData": "campaign-spring-2026"
    }
  },
  "response": {
    "status": 201,
    "body": {
      "destinationAddress": "+61428111222",
      "activeDays": 30,
      "notifyURL": "https://example.com/telstra/inbound",
      "expiryDate": "2026-06-24T00:00:00Z"
    }
  }
}