Nested array of objects in webhook data

Hi,

I’m trying to send a webhook as a campaign event but the requested format does not work:

Format requested: Send Template Message

{
    "broadcast_name": "welcome_test",
    "parameters": [
        {
            "name": "name",
            "value": "Marc"
        }
    ],
    "template_name": "berlin_welcome_test"
}

Mautic only sends:

{
    "broadcast_name":"welcome_test",
    "parameters":"[{\"name\":\"name\",\"value\":\"Marc\"}]",
    "template_name":"berlin_welcome_test"
}

So the nested array of parameters gets an extra quote.

How can i solve this?