Invalid Signature oauth 1.0

Hello, I keep getting invalid signature in my login audit trail in NetSuite, I have tried multiple methods to try to construct this signature correctly but am not sure how to troubleshoot it. The code below is how I am generating the signature.

const crypto = require('crypto');

// Function to generate OAuth 1.0 signature for NetSuite
function generateNetSuiteOAuthSignature(consumerKey, consumerSecret, token, tokenSecret, method, url, params) {
  const baseString = `${method.toUpperCase()}&${encodeURIComponent(url)}&${encodeURIComponent(params)}`;
  const key = `${encodeURIComponent(consumerSecret)}&${encodeURIComponent(tokenSecret)}`;

  const signature = crypto.createHmac('sha256', key).update(baseString).digest('base64');

  return signature;
}

const consumerKey = 'KEY';
const consumerSecret = 'SECRET';
const token = 'TOKEN';
const tokenSecret = 'SECRET';

const method = 'POST'; 
const url = 'https://ACCOUNTID-sb1.restlets.api.netsuite.com/rest/requesttoken';
const params = `oauth_callback=${inputData.callbackURL}&oauth_consumer_key=${inputData.consumerKey}&oauth_nonce=${inputData.nonce}&oauth_signature_method=HMAC-SHA256&oauth_timestamp=${inputData.vtimestamp}&6oauth_version=1.0&6role=1042`; 
// Generate OAuth 1.0 signature for NetSuite
const oauthSignature = generateNetSuiteOAuthSignature(consumerKey, consumerSecret, token, tokenSecret, method, url, params);

// Output the generated signature
output = [{ oauthSignature }];