mint_new.js

  const provider = new ethers.providers.JsonRpcProvider(
    'https://rpc.ankr.com/polygon_mumbai',
    80001
  );
  const signer = new ethers.Wallet(process.env.PRIVATE_KEY as string, provider);
  const sdk = new ThirdwebSDK(signer, {
    gasless: {
      openzeppelin: {
        relayerUrl: process.env.RELAYER_WEBHOOK_URL as string,
      },
    },
  });
  const nftContract = sdk.getNFTCollection(
    '0x24bB3E4C3b2611976aA5494790Bd74e20F4CdeD3'
  );
  const tx = await nftContract.mintTo(recoveredAddress, metadata);