Webhook Signature Verification

import com.basicex.sdk.BaseTest;
import com.basicex.sdk.exception.BasicexException;
import com.basicex.sdk.model.webhook.InvoiceCompletedWebhookMessage;
import com.basicex.sdk.model.webhook.WebhookEvent;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

import java.io.IOException;
import java.security.cert.CertificateException;


public class WebhookServiceTest extends BaseTest {

    @Test
    public void testWebhook() throws CertificateException, IOException, BasicexException {
        String requestBody = "{\"id\":\"b634bd51-8e11-45a1-a520-e67ab30d90c7\",\"objectId\":\"40620230901142435564818874368171\",\"object\":\"event\",\"created\":\"1693549562828\",\"type\":\"invoice.completed\",\"data\":{\"invoiceId\":\"40620230901142435564818874368171\",\"merOrderId\":\"caf7568b141b4d2b8bd7cff0c60b512d\",\"fiat\":\"USD\",\"currency\":\"USDT\",\"fiatAmount\":\"14.89\",\"paidAmount\":\"14.891348\",\"totalAmount\":\"14.891348\",\"currencyExchange\":\"0.99990947\",\"tradeTime\":\"1693549562825\",\"channel\":\"chain_pay\",\"metadata\":null,\"chainPaymentInfo\":{\"network\":\"TRC20\",\"payeeAddress\":\"TXuBpGFEKQ64XQDRjMq4X7dwrtW4vN6VCX\",\"transactionId\":\"f122bf71a4e486ae0763426f99b8555da31f181ec5414827153bfb7b27dfc437\",\"blockHash\":\"00000000025f115d1c9662cd65bf8030717fde35a2214ad930cd6dc5abffc4d1\",\"blockHeight\":\"39784797\",\"packageTime\":\"1693549559497\"}},\"retriesNum\":0}";
        String signature = "MmwS064fan/NWm5pj49nugVYl1hNX7ayzK8gOLwT9DnInxP/kkxQQzivrCey4tYCP0bv6Snhn8fkEe6r965oHtRYMAI4DmxOKjRZWgZHhArGxU+kXfIJq6BP0A0xQP1BhtYWkC9S/rc7q4Qyquv90eWGVeuTowYho8V9wA7kN+p5/IwEFUzpH9JyTwx2uad+nnzsB9dzVSjz+434IF0X8qk2za3BlUS0mDVESOvLTJBRz7ZdihzNHZG5S2FA8yD83ClOsRiX1imXzjb7q7DgcKgGEdbw2Up2CVJDwnDd5zG9cc5cwIEJwJvxypVdcbFNDni0oStGEVwwVCAfrxHSpg==";
        String serialNo = "3d:47:36:3a:64:9c:15:ec:60:c3:ed:e5:71:89:08:52:5b:09:fb:f1";
        String notificationUrl = "https://google.com";
        WebhookEvent event = getClient().webhook().validate(requestBody, notificationUrl, signature, serialNo);
        Assertions.assertNotNull(event);
        Assertions.assertEquals("invoice.completed", event.getType());
        Assertions.assertTrue(event.getData() instanceof InvoiceCompletedWebhookMessage);
    }
}