curl -i -X POST "https://api.box.com/2.0/invites" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json" \
     -d '{
       "enterprise": {
         "id": "1232234"
       },
       "actionable_by": {
         "login" : "[email protected]"
       }
     }'

{
  "id": "11446498",
  "type": "invite",
  "invited_to": {
    "id": "11446498",
    "type": "enterprise",
    "name": "Acme Inc."
  },
  "actionable_by": {
    "id": "11446498",
    "type": "user",
    "name": "Aaron Levie",
    "login": "[email protected]"
  },
  "invited_by": {
    "id": "11446498",
    "type": "user",
    "name": "Aaron Levie",
    "login": "[email protected]"
  },
  "status": "pending",
  "created_at": "2012-12-12T10:53:43-08:00",
  "modified_at": "2012-12-12T10:53:43-08:00"
}