## Main claims 
A token will contain the main claims after authentication or email address confirmation. Presence of these claims does not depend on the user database and authentication call.
| Claim | Type | Required | Description |
|  --- | --- | --- | --- |
| `exp` | [Unix Timestamp](https://www.unixtimestamp.com/) | Yes | Date and time of token expiration. Default expiration time is 24 hours. You can change expiration time for every Login project. |
| `iss` | string | Yes | Service that signed the token: `https://login.xsolla.com`. |
| `iat` | [Unix Timestamp](https://www.unixtimestamp.com/) | Yes | Date and time of giving the token. |
| `sub` | string (UUID) | Yes | User ID written on the Xsolla Login server side. |
| `groups` | array | Yes | List of groups the user is in. Each group: `id` — group ID; `name` — group name; `is_default` — whether the group is default (`true` or `false`). There can be only one default group, which initially includes all users before they are distributed into different groups. |
| `xsolla_login_project_id` | string (UUID) | Yes | Login project ID. |
| `type` | string |  | Authentication option: `xsolla_login` — login via username/email and password; `social` — social login; `email` — passwordless login via one-time code by email; `phone` — by SMS; `firebase` — Firebase storage; `playfab` — PlayFab storage; `proxy` — custom storage; `device` — device ID; `server_custom_id` — custom ID. |
| `avatar` | string |  | User avatar URL. |
| `username` | string |  | Username. |
| `publisher_id` | integer |  | ID of a merchant who owns a Login project. |
| `email` | string |  | User email address. |
| `payload` | string |  | Additional information that is passed in the payload parameter during authentication. |
| `promo_email_agreement` | boolean |  | `true` if the user agrees to receive a newsletter, `false` otherwise. Default: `true`. To add to the [Login widget](https://developers.xsolla.com/doc/login/integration-guide/integrate-solution/#login_guide_integration_widget) registration form: contact your Account Manager (Widget 2.0) or add the `fields` parameter with the `promo_email_agreement` value to the [initialization code](https://github.com/xsolla/xsolla-login-js-sdk#step-2-initializing-widget) (previous widget version). |
| `connection_information` | string |  | Shows whether the user confirmed their birth date or not. Confirmation is made via the [okname](https://www.ok-name.co.kr/) service. |