Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQD/xaLTd8a8DVwhDr0LQf82iEkRjR/dZbsbqc44I0Uv5ihR4MAjX9h6H5n+… (1,748 chars)"
  }
}