Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEYeaUZnNZBwbq+yyAOIsiHuPch/S8KL+UwnaNRLa3lCQE3Ks0rBks+d5SF… (844 chars)"
  }
}