Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBXqbYJotwOmT9Mk9YGFfPpEhiU184/Obn3FsQG1KckzCTCl1Crs8Ew4xOK… (844 chars)"
  }
}