Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCRZj+1uBTP/7L9yX0gAmpbpe0QyKuPy6yTj6WmaEE4q1rzcgtC1VeH1xWl… (1,748 chars)"
  }
}