Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHj2ov9b3GZuVuQUVaoBbql/C/B4ek50y9IYSV4Cx+kDHHWFujciJF0Xzxx… (844 chars)"
  }
}