Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHgQDlwVR7QUW4FcGJD3ez2lc0wbmgTx6o6fYO1FeCqpR4czQ/3ztUghYh8… (844 chars)"
  }
}