API - Create User Post

I cannot find documentation on what the "body" of a create user (POST) api call should look like.  When i run the call below i get a "400 – Bad Request - The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing)."

Does anyone know what is missing from this request?

currently

url: https://captivateprimeeu.adobe.com/primeapi/v2/users

header: 

          content-type : application/vnd.api+json;charset=UTF-8

          Authorization : adkjf;lskajfljk

body:

{
"data":{
"type":"user",
"attributes":{
"email":"john.deo@xyz.com",
"name":"John Doe",
"userType":"INTERNAL"
}
}
}