Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA9Z/kho5w3Jvgd8aw20pZAw3qdYZzHR/W3EA6bIRVenizHBAQS0HH/5wBa… (844 chars)"
  }
}