Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHUvGg7skPQOok1vSIxCNZ6SbmCBcFp0UQmhtOCWaWL7GDnv+OC8kccP5oL… (844 chars)"
  }
}