Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE2dE1Vf6QXERE7W056qTb9NVd9NZtze+1Z6OR6gvgcaRKKQh+h7xy5qs4H… (844 chars)"
  }
}