Suitetalk - Create Customer (POST) issue

Hi, I am trying to create a Customer with the endpoint - POST

https://xxxxxx.suitetalk.api.netsuite.com/services/rest/record/v1/customer/

I am trying with this payload:

{    "entityid": "123452",    "companyname": "Intact Test 2",    "subsidiary": {        "id": "3"    },    "contactRoles": {        "items": [            {
                "contact": {                                       "id": "5986",                    "refName": "Intact Contact"                },                "contactName": "Intact Contact",                "email": "test@intact .com",                "giveAccess": false,                "role": {                                        "id": "14",                    "refName": "Customer Center"                }            }        ]    }}

I get this error:

"detail": "Error while accessing a resource. You have attempted an invalid sublist or line item operation. You are either trying to access a field on a non-existent line or you are trying to add or remove lines from a static sublist.",            "o:errorPath": "contactRoles",            "o:errorCode": "USER_ERROR"