Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBSwJA+GYb2UFYiiJGLby5/tgJjPFD3bAS1zQrIi5mw4Bqz/FKC7qS+WfCd… (844 chars)"
  }
}