`GET /users/{id}/sessions` — the sessions this person can still use, most recently used first (at most 50; `total` counts them all). The person and admins only.

{  "data": [    {      "last_seen_at": "string",      "sign_in_method": null,      "signed_in_at": "string"    }  ],  "page": 0,  "page_size": 0,  "total": 0,  "total_pages": 0}