public function mine(\DateTime $fromDate, $period)
    {
        //        $fromDate = (new Literal\DateTime($fromDate))->dumpValue('text');
        $query = <<<QUERY

select  ?subscriber ?subscriptionPeriod

where {
    ?subscriber tal:subscriptionApplied ?subscription .

    ?subscription tal:subscriptionType tal:SubscriptionForumPosts .
    ?subscription tal:subscriptionPeriod ?subscriptionPeriod .

}

QUERY;
        echo $query;
        $result = $this->endpoint->query($query);
        $subscriptions = [];
        foreach ($result as $element) {
            $subscriptions[$element->subscriber->getUri()] = ['period' => $element->subscriptionPeriod->getValue()];
        }
        $response = $this->httpClient->submit('http://www.talaka.by/forum/extensions/talaka_integration/get_new_topics.php', ['from' => $fromDate->getTimestamp()], 'GET');
        $data = json_decode($response->getContent(), true);
        foreach ($data as $userURI => $userInfo) {
            if (array_key_exists($userURI, $subscriptions)) {
                if ($subscriptions[$userURI]['period'] != $period) {
                    $this->logger->addDebug('Skip user for period (' . $period . ')' . $userURI);
                    continue;
                }
            }
            //            var_dump($userURI);
            //            var_dump($userInfo['userName']);
            $topics = $userInfo['topics'];
            $this->logger->addInfo('User: '******'Topics count: ' . is_array($topics) ? count($topics) : 'NOT ARRAY!');
            foreach ($topics as $topicURI => $topicName) {
                $brief = new ForumTopicBrief();
                $brief->setCreationDate($fromDate);
                $brief->setSubscriber($userURI);
                $entity = new Generic();
                $entity->setOrigin($topicURI);
                $entity->setRdfNamespace('talforumtopic');
                $entity->name = $topicName;
                $brief->setEntity($entity);
                (yield $brief);
            }
            //            foreach ($element as $field => $value) {
            //                $this->briefPropertySetter->setBriefProperty($brief, $field, $value);
            //            }
        }
    }