The key to use for verifying the token's signature (e.g. if you chose HS256 as algorithm, this will be the HMAC secret; for RS512 this will be the PEM-formatted public RSA key string, etc...).
See Implementation
The key to use for verifying the token's signature (e.g. if you chose HS256 as algorithm, this will be the HMAC secret; for RS512 this will be the PEM-formatted public RSA key string, etc...).