public function load_latest_item_data($debug = false)
    {
        // serialise this result into envato_data.
        if (!$this->account) {
            echo 'No envato account linked, please try again';
            return;
        }
        $api = $this->account->get_api();
        $network_key = $this->get('network_key');
        if (!$network_key) {
            echo 'No envato item id found';
            return;
        }
        // we keep a record of the last message received so we know where to stop checking the feed
        $last_message_received = (int) $this->get('last_message');
        if ($debug) {
            echo "Getting the latest 60 comments for item: " . $network_key . " (last message in database is from " . shub_print_date($last_message_received, true) . ")<br>\n";
        }
        $newest_message_received = 0;
        $endpoint = 'v1/discovery/search/search/comment?term=&item_id=' . $network_key . '&sort_by=newest&page_size=60';
        $api_result = $api->api($endpoint);
        if ($debug) {
            echo "API Result took :" . $api_result['took'] . ' seconds and produced ' . count($api_result['matches']) . ' results';
        }
        $count = 0;
        if (isset($api_result['matches']) && is_array($api_result['matches'])) {
            //foreach($api_result['matches'] as $item_message){
            while ($api_result['matches']) {
                $item_message = array_pop($api_result['matches']);
                if (!$item_message['id']) {
                    continue;
                }
                $message_time = strtotime($item_message['last_comment_at']);
                $newest_message_received = max($newest_message_received, $message_time);
                if ($message_time <= $last_message_received) {
                    continue;
                }
                // all done here.
                // check if we have this message in our database already.
                $envato_message = new shub_message($this->account, $this, false);
                $envato_message->load_by_network_key($item_message['id'], $item_message, 'item_comment', $debug);
                $count++;
                if ($debug) {
                    ?>
					<div>
					<pre> Imported message ID: <?php 
                    echo $envato_message->get('network_key');
                    ?>
 </pre>
					</div>
				<?php 
                }
            }
        }
        SupportHub::getInstance()->log_data(_SUPPORT_HUB_LOG_INFO, 'envato', 'Imported  ' . $count . ' new messages into database');
        if ($debug) {
            echo " imported {$count} new item comments <br>";
        }
        $this->update('last_message', $newest_message_received);
        $this->update('last_checked', time());
    }