Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHwCZvpGONaQto7JMaJh5e+q5fhCQRz2bciYAjGcpCi8Xj4Wr3tYf7UOHvB… (844 chars)"
  }
}