JSON Web Tokens (JWT) are a JWS with a set of reserved claims to be used in a standardized manner.
| Claim | Name | Format | Usage |
|---|---|---|---|
| ‘exp’ | Expiration | int | The time after which the token is invalid. |
| ‘nbf’ | Not Before | int | The time before which the token is invalid. |
| ‘iss’ | Issuer | str | The principal that issued the JWT. |
| ‘aud’ | Audience | str or list(str) | The recipient that the JWT is intended for. |
| ‘iat’ | Issued At | int | The time at which the JWT was issued. |