{ "mqtt_endpoint": "avk03ee629rck-ats.iot.ap-northeast-2.amazonaws.com", "mqtt_port": 8883, "mqtt_topic": "sdtcloud/7ef757d6-2fc4-4858-ab9f-171dea556f71/SECN00024010005/app/54343567-815e-42ed-91e6-5070336637ee/data", "cert_file": "/etc/sdt/cert/7ef757d6-2fc4-4858-ab9f-171dea556f71-certificate.pem", "key_file": "/etc/sdt/cert/7ef757d6-2fc4-4858-ab9f-171dea556f71-private.pem", "root_ca_file": "/etc/sdt/cert/AmazonRootCA1.pem" }