code: public Request<Job> sendVerificationEmail(String userId, String clientId) {
          Asserts.assertNotNull(userId, "user id");
  
          String url = baseUrl
                  .newBuilder()
                  .addPathSegments("api/v2/jobs/verification-email")
                  .build()
                  .toString();
  
          Map<String, String> requestBody = new HashMap<>();
          requestBody.put("user_id", userId);
          if (clientId != null && !clientId.isEmpty()) {
              requestBody.put("client_id", clientId);
          }
  
          CustomRequest<Job> request = new CustomRequest<>(client, url, "POST", new TypeReference<Job>() {
          });
          request.addHeader("Authorization", "Bearer " + apiToken);
          request.setBody(requestBody);
          return request;
      }
docs: Sends an Email Verification. A token with scope update:users is needed.
  See https://auth0.com/docs/api/management/v2#!/Jobs/post_verification_email
  
  @param userId The user_id of the user to whom the email will be sent.
  @param clientId The id of the client, if not provided the global one will be used.
  @return a Request to execute.