Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF7dlHdYjT5Qwg6ItPeABvekbRCrt4nO1o8MY/B6mFYIxyKHNKfNdENQ7Dp… (844 chars)"
  }
}