public ResetPasswordToken insertResetPasswordToken(User user, LocalDateTime expiresIn) {
        var token = new ResetPasswordToken(expiresIn, user);
        return resetPasswordTokenRepository.saveAndFlush(token);
    }
Method inserts new app/model before subject insert.

@param subjectName subject name
@return subject object
java/admin/src/test/java/com/exadel/frs/DbHelper.java