Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHOUjAYLPqGeXdqZRJ0L/fhvfeEFkZ4z6dcybHhvn2SfHN+RYq+JhzNXsz/… (844 chars)"
  }
}