Get an outstanding message

Example response

{
  "data": {
    "attachments": [
      "https://example.com/image.jpg",
      "https://example.com/video.mp4"
    ],
    "contact": "+18005550100",
    "content": "This is a sample text message",
    "created_at": "2022-06-05T14:26:02.302718+03:00",
    "delivered_at": "2022-06-05T14:26:09.527976+03:00",
    "expired_at": "2022-06-05T14:26:09.527976+03:00",
    "failed_at": "2022-06-05T14:26:09.527976+03:00",
    "failure_reason": "UNKNOWN",
    "id": "32343a19-da5e-4b1b-a767-3298a73703cb",
    "last_attempted_at": "2022-06-05T14:26:09.527976+03:00",
    "max_send_attempts": 1,
    "order_timestamp": "2022-06-05T14:26:09.527976+03:00",
    "owner": "+18005550199",
    "received_at": "2022-06-05T14:26:09.527976+03:00",
    "request_id": "153554b5-ae44-44a0-8f4f-7bbac5657ad4",
    "request_received_at": "2022-06-05T14:26:01.520828+03:00",
    "scheduled_at": "2022-06-05T14:26:09.527976+03:00",
    "scheduled_send_time": "2022-06-05T14:26:09.527976+03:00",
    "send_time": 133414,
    "sent_at": "2022-06-05T14:26:09.527976+03:00",
    "status": "pending",
    "type": "mobile-terminated",
    "updated_at": "2022-06-05T14:26:10.303278+03:00",
    "user_id": "WB7DRDWrJZRGbYrv2CKGkqbzvqdC"
  },
  "message": "Request handled successfully",
  "status": "success"
}