// topics are divided into levels
abccompany/west/speed/SampleDevice
abccompany/east/temperature/AnotherDevice
// topic filters allow single (+) and multi-level (#) wildcards
// topic filter matching all west coast speed messages
abccompany/west/speed/+
// topic filter matching all abccompany messages in all regions
abccompany/#
// topic filter matching all speed messages
abccompany/+/speed/+