Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHpT4t8/vpZunVucIhNyaTUE2tNz7kJN57Qb5OU+bEX1y2m5ONvBc7tE/uh… (844 chars)"
  }
}