Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQCYWXcxFJzTlQskwKzk9r2/r5jlWVSCBLFvfGqmc7ZzKzVnl5GYN4I3slhx… (1,748 chars)"
  }
}