MQTTS with W5500

I am trying to make MQTTS connection by W5500 chip. I am using STM32F411 and generating code with STM32CubeMX and compiling with Makefile. I’m unable to find any sample code that works for this, Please share if anyone have any idea how can i make this possible. I alredy tried and I have MQTT working with this setup but unable to find any example showing how would i proceed with certificates and key while connecting MQTT over secure port.
I tried with paho-mqtt-embedded-c libarary but in that I was not able to find a way of working with certificates.