Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQAMXG9DLFipco8d7Ca9C3v1WcRtDB/f5uZE5s2AMfLLfSy4IJ52lEV3H7c9… (1,748 chars)"
  }
}