Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQB4YVWP6SzoE+Xy11uVARDCQSp7+RzUC7XvKihYeSsHhTzqGtQN5Gh1h/hh… (1,748 chars)"
  }
}