Klaviyo Custom Properties Create and Update Profile

Hi ,

I am trying to insert or update a profile with custom properties ($value1,$value2,$value3,$value4,$value5) but it seems it does not being display / written on the profile. Never mind the “...” this is a value. Can someone help me?

{                 "data": {                         "type": "profile",                         "attributes": {                            "email": "...",                            "external_id": "...",                            "first_name": "...",                            "last_name": "...",                            "organization": "...",                            "title": "...",                            "image": "...",                            "location": {                                      "country": "...",                                      "zip": "...",                                      "region": "..."                                        }                          },                         "properties" : {                                        "$value1": "...",                                        "$value2": "...",                                        "$value3": "...",                                        "$value4": "...",                                        "$value5": "...",                                        "$value6": "..."                                        }                         }                  }';