Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEoS8y/itXL3yjh8QI4q4e0Bh99W4BIF0JRFcuXoTQkPSFyXelmjFy0g6vp… (844 chars)"
  }
}