Receive sensor data using PAHO and MQTT

i tried to receive a sensor data that i sent using PAHO javascript library. i manage to upload the sensor data to the cayenne dashboard from my component but i can’t figure out how to receive that data from dashboard. i read the manual docs here : Cayenne MQTT API but i got a little bit lost on how can i subscribe to the data. any help and suggestion is appreciated

here is the docs for it Cayenne Docs