Retrieve data from push notification

Hello everyone,
I’im trying to retrieve some info from a push notification. In particular im looking for “section” label.
Im able to retrieve the body with:

LOOKUP(outputs[“NOTsent”].event, “body”) ;

But how can i access to the “data” array of a notification sent with the following code?

function ......
  
$url = "https://fcm.googleapis.com/fcm/send";
$token =  $dests;
$serverKey = ' ;
$title = $not_title;
$body =  $not_text;
#if($section=='goto')$extraNotificationData = array("section" => "goto","gourl" => 'https://prova.com' );
$extraNotificationData = array("section" => "goto","gourl" => 'https://prova.com' );

 
$notification = array('title' =>$title , 'body' => $body, 'sound' => 'default', 'badge' => '1' ,"image"=> $image );
$arrayToSend = array('to' => $token, 'notification' => $notification,'priority'=>'high',  'data' => $extraNotificationData);
$json = json_encode($arrayToSend);
$headers = array();
$headers[] = 'Content-Type: application/json';
$headers[] = 'Authorization: key='. $serverKey;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST,"POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
curl_setopt($ch, CURLOPT_HTTPHEADER,$headers);
  curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); //hide response
//Send the request
$response = curl_exec($ch);
/*
if ($response === FALSE) {
die('FCM Send Error: ' . curl_error($ch));
}
*/
curl_close($ch);
echo $response ;
return null;
}

Thanks 4 your help.

None of these seems to work for me.

 LOOKUP(outputs["NOTsent"].event.data,  "section") 
LOOKUP(outputs["NOTsent"].event,  "section")