Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHB+WlrPPEzJm0xhJyAXHM7H+PeoPArueGiPPN7oek5h1HoF8NG4Ul4wJPw… (844 chars)"
  }
}