Associate is one of
GET /api/v1/contact?$select=name,associateId&$filter=registeredBy associateIsOneOf (1,6) HTTP/1.1
Authorization: Bearer 8A:
Content-Type: application/json
Accept: application/json
Associate is not one of
GET /api/v1/contact?$select=name,associateId&$filter=registeredBy associateIsNotOneOf (1,6) HTTP/1.1
Authorization: Bearer 8A:
Content-Type: application/json
Accept: application/json