Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCo0zZjL1amV6LyQDfHTILzeKiMZlzpIb0XUzQAOp/BciA5DhPFEKTF/Kh8… (844 chars)"
  }
}