Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCLLe4nQIBBdlvHSdbAJLpYth/xOga6TAVzLHEmSdQmBBdbRvPl60mV4Xu+… (1,748 chars)"
  }
}