Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwKGY71cqSxTEpx3a96aQjDztqx8QYW9KCTCt6+mTuRKlgo8H1yI+jPCK7q2… (844 chars)"
  }
}