Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD5O0WzxdfpdMiNhMwx66fn+0xAGW28+uIv6lS7Yy6HqgHZzT+odZS5BDSp… (844 chars)"
  }
}