Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwJd1P8ws6TwPTH28ElT8WMXy7SGxSmD4cq6Fv6UeKyM/z6jD2oBKmHrVDR6… (844 chars)"
  }
}