var amount = web3.utils.toHex(1000000000000000000)
var fees = web3.utils.toHex(100000000000000000)

const privateKey1 = Buffer.from('private_key_deleguate', 'hex')
var gasPrice = '21000000000';

web3.eth.getTransactionCount(deleguate, (err, txCount) => {
    if (err) {
        console.error(err);
        return err;
    }
    console.log(txCount)
    // Build the transaction
    const txObject = {
        "chainId": 4,
        "from": deleguate,
        "nonce": web3.utils.toHex(txCount),
        "gasPrice": web3.utils.toHex(gasPrice),
        "gasLimit": web3.utils.toHex(800000),
        "to": ContractAddress,
        "value": "0x00",
        "data":
            //contract.methods.transfer(receiver, amount).encodeABI() ---> this work fine
            contract.methods.transferPreSigned(signature, receiver, amount, fees, web3.utils.toHex(txCount)).encodeABI()
    }

    // Sign the transaction
    const tx = new Tx(txObject)
    tx.sign(privateKey1)
    const raw = "0x" + tx.serialize().toString('hex');

    web3.eth.sendSignedTransaction(raw, (err, result) => {
        if (err) return console.error('error ', err);
        console.log('send token hash Tx: ', result);

    }).on('receipt', receipt => {
        //console.log('------> ', receipt)
        return { "code": 200, "message": "transfer token succeed", "address": receipt };
    }).on('error -> ', error => {
        console.error(userWallet, "Error send token ", error);
        return { "code": 409, "error": "sign transaction error" };
    });