Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHD+5Fv2yrVgrYCbPNX7H0nE74gnEHwaZa/iQCTWFmHcSRLI+abD6p6Q+oR… (844 chars)"
  }
}