Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGdmK2wtHf9APFVCsZXOJw17LPXbLIKwGNq7Vd7hvOiHmU50gd9SX9FgJvW… (844 chars)"
  }
}