51cd1206_JSON_Web_Token__JWT___Claim_Syntax
[Claim Name] jti [JSON Value Type] string [Claim Semantics] The jti (JWT ID) claim provides a unique identifier for the JWT. The identifier value MUST be assigned in a manner that ensures that there is a negligible probability that the same value will be accidentally assigned to a different data object. The jti claim can be used to prevent the JWT from being replayed. The jti value is case sensitive. This claim is OPTIONAL. [Claim Syntax] 
String
I n t D a t e
S t r i n g O r U R I
S t r i n g
JSON Web Token (JWT)
Claim Syntax