CRMGroupConnectionV1

{
    "type": "crm-group-connection",
    "id": "string",
    "attributes": {},
    "relationships": {
        "crm_connection": {
            "id": "string",
            "type": "crm-connection"
        },
        "company": {
            "id": "string",
            "type": "company"
        }
    }
}