Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFTSqgIB7qakpHzyGw0RwzKj5qN+DzAqc45+m7Ub+CY0F7D4s5xPsT5kKnw… (844 chars)"
  }
}