Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQGwZa3QpDqeD4Rp06QFXmqtsxEK5VhfpuoLFMU/IemzzmFTX6B9g6sw3/49… (1,748 chars)"
  }
}