Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQD/+F/f4K2AjfzumQBFxQs01Hv6/rYBmrAEV7oD6ZUgoAvS6eHvJcS5hFdg… (1,748 chars)"
  }
}