in Controller/Adminhtml/Ajax/Fbaamsettings.php [19:34]
public function executeForJson()
{
$response = [
'success' => false,
'settings' => null,
];
$pixelId = $this->getRequest()->getParam('pixelId');
if ($pixelId) {
$settingsAsString = $this->_fbeHelper->fetchAndSaveAAMSettings($pixelId);
if ($settingsAsString) {
$response['success'] = true;
$response['settings'] = $settingsAsString;
}
}
return $response;
}