Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDb9UQOfg/qlTVsRVgYy09KL1y9E7Mcv5vFPEkN7mWdCz04wqfY2zD0Zbxq… (844 chars)"
  }
}