Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFCPuP6bFtNNJA7bX/8JJx8y/Z7lZl8x5KL8GjHgRTUaS7YNYT08WgQTxlJ… (844 chars)"
  }
}