Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHhaHD1v2VBn+fhAKx9Ju0hTxNQ2q40W23TJ0kB1VTbLQKuo/Vw85CyUaSi… (844 chars)"
  }
}