curl --request GET \
  --url https://sandbox.withclasp.com/connections/{public_id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "broker_url": "<string>",
  "employer": "<string>",
  "group_connections": [
    {
      "id": "<string>",
      "carrier": "<string>",
      "status": "pending",
      "broker_federal_ein": "<string>",
      "group_id": "<string>",
      "connection": "<string>",
      "initiated_at": "2023-11-07T05:31:56Z",
      "completed_at": "2023-11-07T05:31:56Z"
    }
  ],
  "events": [
    {
      "id": "<string>",
      "category": "initial_connection",
      "status": "not_started",
      "created_at": "2023-11-07T05:31:56Z"
    }
  ],
  "status": "<any>"
}