Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwELc9RTU7KpZtKV+GKbp9hPu5bAeZl70fgsOjTMuebtf0JxA0PoC/BuB6/F… (844 chars)"
  }
}