Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBCSA7yIUFhY85VVEN2E4jRaGXpp2lEc2vT6+x3ziGbjCg8sS+vO4Gd2yFZ… (1,748 chars)"
  }
}