Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDvf4hv2nPJ9Gi1wW8jbb/0nKfjbmRlSJolC2eDLMcOLgW3FRv1SfYD/UAV… (844 chars)"
  }
}