Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFI4nVvxzvPC1uCZmgCCt84r+HyC6D9A/7RZ0jBwN6mgWm3Ddna5J6WNfMF… (844 chars)"
  }
}