The secret key to use for signing the token (e.g. if you chose HS256 as algorithm, this will be the HMAC secret; for RS512 this will be the private PEM-formatted RSA key string, and so on...).
See Implementation
The secret key to use for signing the token (e.g. if you chose HS256 as algorithm, this will be the HMAC secret; for RS512 this will be the private PEM-formatted RSA key string, and so on...).