Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDDTLIqGf/yvJgFF9mSYMrlDAvo1HaRih1hNYF/+NjPw2jeO5DI2BAm65+/… (1,748 chars)"
  }
}