const { Transaction } = require('@ethereumjs/tx');

async function run() {
	const txParams = {
		from: "0xb1C3C636576910195B322407CB037AA39CFc3704",
		to: "0x0EefF8299B50111b0414D55a7A351A0b02d2529A",
		nonce: '0x00',
		gasPrice: "0x09184e72a000",
	}

	// privkey to the `from` address
	const privateKey = Buffer.from('d05ed1ad7027c78aa1f0a55f1b135ff1ba9abbb571457673126e3950c1a927a0', 'hex')

	const tx = Transaction.fromTxData(txParams);
	const signedTx = tx.sign(privateKey);

	const tx2 = Transaction.fromTxData(txParams);
	const signedTx2 = tx.sign(privateKey)

	console.log(signedTx.hash().toString("hex"));
	console.log(signedTx2.hash().toString("hex"));
}

run();