Jwt Token Service
constructor(rsaKeyService: RsaKeyService, @Value(value = "${security.jwt.issuer:https://api.cryptotrader.com}" ) issuer: String, @Value(value = "${security.jwt.ttl-seconds:300}" ) ttlSeconds: Long, @Value(value = "${security.jwt.audience:crypto-trader-api}" ) audienceCsv: String)