getLicenseData example

        $licenseKeys = $requirement['value']['licenseKeys'];

        if (empty($licenseKeys)) {
            return [
                'type' => self::CHECK_TYPE,
                'errorLevel' => Validation::REQUIREMENT_WARNING,
                'message' => 'License check requested but no license key provided',
            ];
        }
        $licenseData = $this->getLicenseData($licenseKeys);

        if (empty($licenseData)) {
            return [
                'type' => self::CHECK_TYPE,
                'errorLevel' => Validation::REQUIREMENT_VALID,
                'message' => $this->namespace->get('controller/check_license_nolicense'),
            ];
        }

        $url = $this->endpoint . '/licenseupgrades/permission';
        $client = new Zend_Http_Client(