Energy integration from Tasmota SML (Json encoded data via MQTT)

Hello everyone,
I just got my electric meter connected to a hitchi IR Head (German page). Basicly it’s tasmota running on a ESP8266 with IR Head. This is working fine so far, I installed mosquitto MQTT broker on HA and receive the json encoded MQTT information from the sensor. Example:

{
    "Time": "2022-05-08T19:35:38",
    "SML": {
        "Total_in": 15739.95,
        "Total_out": 0,
        "Power_curr": 538,
        "Volt_p1": 227.3,
        "Volt_p2": 229.3,
        "Volt_p3": 229.3,
        "Ampere_p1": 2.1,
        "Ampere_p2": 1,
        "Ampere_p3": 0.8,
        "Freq": 50
    }
}

Now i would like to include this information to the enery integration of HA. Could anyone give me a hint what’s the best practise to do so?
Thanks

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