Answered Property Set not working with getPage

<ol>
[[!getPage@blogProp? &element=`getResources` &parents=`47` &where=`{"template:=":8}` &tpl=`blogList.Tpl` &sortby=`publishedon`]]
</ol>
<div class="pagination">
[[!+page.nav]]
</div>

<?php
$params = array(
  'element' => 'getResources',
  'parents' => 47,
  'tpl' => 'blogList.Tpl',
  'limit' => 4,
  'sortby' => 'publishedon',
  'where' => '{"template:=":8}'
);

$propSet = $modx->getObject('modPropertySet',array(
        'name' => 'blogProp'));
#print '<pre>'; print_r($params); print '</pre>';
return $modx->runSnippet('getPage', array_merge($propSet->getProperties(), $params));