Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF2HnJA+Y6aPUX3v8GT2aGWkevGqeqjax5j+xX5z46KVmOLnBF4YEglx9yA… (844 chars)"
  }
}