Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDu/a+CruqfOCvXXdE1l/33Ntp5jnjGdvs97qH1/j9iYi3ak+K7YnyRGg8J… (1,748 chars)"
  }
}