Request body malformed using Webhook

Request body malformed using Webhook

Hi all, 
After changing the authentication type from General to Connection in my webhook, I noticed some strange behavior in the request to my API call. It seems what before was made by Zoho CRM, now uses an intermediary called Deluge, which produces a malformation in the body when it comes using form-data. 

Any ideas? 

Request through General authentication:
  "body": {
"key": "value",
"key2": "value2",
},
"headers": {
"user-agent": "crm.zoho.com",
"content-type": "application/x-www-form-urlencoded;charset=UTF-8" ...
}
}
Request through Connection authentication:
  "body": {{"key":"value","ke2":"value2"}: ""}
  "headers": {
"user-agent": "Deluge",
"content-type": "application/x-www-form-urlencoded;charset=UTF-8" ...
}
}

Regards, Guillermo