Get Staking Transaction

const STAKING_BASE_API_URL = 'https://ethereum-staking.sprd.validationcloud.io/v1/api';
const STAKING_REQUEST_URL = `${STAKING_BASE_API_URL}/ethereum/mainnet/stake_transaction`;

async function createStakeTransaction(token, walletAddress, num) {
  const jsonBody = JSON.stringify({
    num_validators: num,
    wallet_address: walletAddress,
  });

  const response = await fetch(STAKING_REQUEST_URL, {
    method: 'POST',
    headers: {
      Authorization: `Bearer ${token}`,
      'Content-Type': 'application/json',
    },
    body: jsonBody,
  });

  return await response.json();
}