test with prefix and not parsable | {"level with prefix | {"level":"xyz","msg":"<>Trust key rsa-43fe6c3d-6242-11e7-8b0c-02420a000007 found in cache","package":"trust","process":"gatekeeper","store":"cache","time":"2017-07-06T15:21:16Z","version":"0.1.20170620v0125"} with prefix | {"level":"debug","msg":"Trust key rsa-43fe6c3d-6242-11e7-8b0c-02420a000007 found in cache","package":"trust","process":"gatekeeper","store":"cache","time":"2017-07-06T15:21:16Z","version":"0.1.20170620v0125"} {"level":"info","msg":"<>Trust key rsa-43fe6c3d-6242-11e7-8b0c-02420a000007 found in cache","package":"trust","process":"gatekeeper","store":"cache","time":"2017-07-06T15:21:16Z","version":"0.1.20170620v0125"} {"level":"info","msg":"<>Trust key rsa-43fe6c3d-6242-11e7-8b0c-02420a000007 found in cache","package":"trust","process":"gatekeeper","store":"cache","time":"1716292213381","version":"-1.1.20170620v0125"} {"timestamp":"<>2017-07-06T15:21:16.378+00:00","@version":1,"short_message":"Content-Type set both in header (application/json) and attached to entity (text/plain; charset=utf-8), ignoring content type from entity. To remove this warning, use Result.as(...) to set the content type, rather than setting the header manually.","logger_name":"play.core.server.netty.NettyModelConversion","thread_name":"application-akka.actor.default-dispatcher-114","severity":"WARN","level_value":30000,"HOSTNAME":"b54f64d212ac","application.home":"/opt/docker","process":"play"} {"bytes":0,"fields.time":"13.288673ms","flow_id":"c1114163-625e-11e7-90fe-02420a000016","level":"info","method":"GET","millis":13.288673,"msg":"Request: Success","package":"proxy","process":"gatekeeper","status":200,"time":"2017-07-06T15:21:16Z","type":"access","uri":"/internal/metrics","version":"0.1.20170620v0125"}