Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQEEC/tiskWQT0kjq40b1RhKVbO6i7lsgkQdq3FpHKX16V7DKp/3hw1pNl3C… (1,748 chars)"
  }
}