SonoffLAN - how to use a value from the log

Hi,
I am using the GitHub - AlexxIT/SonoffLAN: Control Sonoff Devices with eWeLink (original) firmware over LAN and/or Cloud from Home Assistant integration, all works well and I have a Sonoff POWCT installed.
In the eWeLink app it shows the value “Today’s Export”, which I want to use in the Energy Dashboard, it is however not shown in HA (HA shows, current, Energy Day/Month, Power and Voltage).
If I download the log from the integration I see “dayPowerSupply” (see part of the log below) which corresponds with the value in the app.

    "getHoursKwh": {
      "start": 0,
      "end": 719
    },
    "only_device": {
      "ota": "success",
      "ota_fail_reason": 0
    },
    "TZ": "Asia/Bangkok",
    "detectionMode": 1,
    "yesterdayKwh": 1004,
    "dayPowerSupply": 1136,
    "monthPowerSupply": 1136,
    "supplyCurrent": 0,
    "supplyPower": 0,
    "yesterdayPowerSupply": 0
  },
  "model": "POWCT",
  "online": true,
  "local": true,
  "localtype": "plug",
  "host": "192.168.1.xxx:8081",
  "deviceid": "10023xxxxx"
}

How to turn the value in a sensor that can be used in the Energy dashboard ?

Got it working through a command line sensor that reads the value from the json file