Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGNlZFj2tqPe4g54ZE5+T5GppfTtvsEZq6q/+xvJrZ1niSz9/oEsXq7Gs5i… (844 chars)"
  }
}