https://github.com/keycloak/keycloak/blob/main/core/src/main/java/org/keycloak/TokenVerifier.java
https://www.keycloak.org/docs-api/latest/javadocs/org/keycloak/TokenVerifier.html#issuedFor(java.lang.String)

https://github.com/keycloak/keycloak/blob/main/core/src/main/java/org/keycloak/representations/JsonWebToken.java
    org.keycloak.representations.JsonWebToken.getIssuedFor()

import static org.keycloak.representations.JsonWebToken.AZP;