curl --location 'https://merchantapi-dev.vantpay.io/api/v1/merchant/authenticate' \ --header 'Content-Type: application/json' \ --data '{ "clientId": "8IhQ2-22D7IbRIH", "clientSecret": "66BC6wwwCIcvSRycJttf3gD4xOeEyV1x8qwisn-LQUQtd-rWGN" }'
{}