Help to connect Webhooks with Wix

Anyone already personal Webhooks with Wix?
How do I add the data (in JSON) notifying third parties? Ex:
{
"name": "?????"
"model": "??????"
email": "??????"
}

What do you mean? Sending from Wix to a third party or receiving in Wix from a third party? And do you use Wix Automations or your own endpoints?