Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA9SueD5udMWtF5CxDQZSvK+4KxeJtDZaT2q1s27CUxCzqpBCqO1O7z/Gh8… (844 chars)"
  }
}