Parse items within hierarchy

Hello;

how can I show items within a hierarchy?

like this:

>data
>0
>id
>name
>description
>references
>image
>url “https://url.com/pic.jpg”
>1
…

I tried to show the image {url} but it doesn’t show up .

[jsoncontentimporter url=https://… basenode=data debugmode=10]
{subloop:data:5}{startdate} um {starttime}<br><h2>{name:ifNotEmptyAdd::}</h2>{/subloop}
{subloop}{references}{image}{url}{description}{/subloop}<br>Tickets<br><br>
[/jsoncontentimporter]

(only the other idems like startdate, starttime name description are shown)
Kind Regards