curl -X POST http://localhost:5080/api/v1/auth/tokens \
  -H "authorization: Bearer $MS_JWT" \
  -H 'content-type: application/json' \
  -d '{
    "name": "grafana-readonly",
    "role_id": "<viewer-role-id>",
    "expires_in_days": 90
  }'

{
  "id": "3KE5hOsEc3lMC9qr9RWnPn0pqWF",
  "prefix": "l2XcQd8UoQzK3pLm",
  "token": "ms_l2XcQd8UoQzK3pLm_<secret>",
  "role_id": "<viewer-role-id>",
  "role_key": "viewer",
  "role_name": "Viewer",
  "token_kind": "personal",
  "application_id": null,
  "service_account_id": null,
  "expires_at_micros": 1798000000000000,
  "created_at_micros": 1790000000000000
}