Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBcLXQyLojXZwbqbr5XzLNaD+fxddqr950zPtO+IxKU0Rq2TRe84Yc4zUnz… (844 chars)"
  }
}