curl --request GET \
  --url https://{workspaceId}.clinia.cloud/mdm/v1/relative-identity-collections

{
  "meta": {
    "numPages": 123,
    "page": 123,
    "perPage": 123,
    "total": 123
  },
  "data": [
    {
      "key": "<string>",
      "status": "ACTIVE",
      "config": {
        "type": "SEQUENCE",
        "offset": 123
      },
      "differentiators": {}
    }
  ]
}