Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDJeGz45/5YW58q49QSByy8Zfva6RuzbIxkAa+ek+WS60+ezX7rIknBrBGX… (1,748 chars)"
  }
}