Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCqe+A+dirDrNp/p7P+lBUjiaOYdOaYezzJ8kqPCRK5zCGzIPR9dMGPNW9H… (1,748 chars)"
  }
}