How to send this body from an integration to an externalsystem

From appian i Need to send the below data using integration

{
 
"Guid": "String",

"TypeId":  1

"Comment": "string",

"addColleague": {

"email": "string",  "Name": "string", "Flag": true, "deletedFlag": true, "ID": 2, "idFromsender": "string", "addDeleteUpdate": 1 }

}

How to send the data in the above format from integration .Can I use CDT's 

I have one CDT  were GUid,comment, email,name and idfromsender are present

Can someone please guide