app.post('/mi_webhook_subscription/', bodyParser.json(), (request, response) => {
        try {
            let eventObj = request.body;
            const signature = request.headers['mitilena-signature'];
            if (signature === endpointSecretMitilenaNewOur) {
                if (!eventObj.statusObj) {
                    return response.status(400).send('Error, no object.');
                }

                let hookObj = eventObj.statusObj;
                ...

 statusObj = {
    mitilenaInvoiceId: 'auto-683dc5-03f2c0-e3f06a-example-string', // never undefined
    yourPaymentId: 'stringOrNull', // never undefined
    yourProductName: 'stringOrNull', // never undefined
    yourProductId: 'stringOrNull', // never undefined 
    secretKey: 'your-unique-secret-key', // never undefined,
    stableCoinAmount: 0, // number, never undefined
    stableCoinSymbol: 'USDT', // never undefined
    stableCoinBlockchain: 'tether-trc20', // never undefined
    stableCoinContractAddress: 'TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t', // string | null
    localCurrencyAmount: 0, // number, never undefined
    localCurrencyCode: 'EUR', /// ISO 4217 currency code, never undefined
    wasPaid: true, // true | false, never undefined
}
/* payment time === webhook call time.
We try to send a request immediately after the payment is detected
!!!
If the secret key is incorrect or at least one field is
undefined - this is a fake request, do not set the order
as paid in your system! */