Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEw3QMUt2imZRe8MYZGEPMcd5jWaVrAhlZO/jz6+Tsjn0bMB2Uu+0JwjrJ6… (844 chars)"
  }
}