post https://neon-loyalty-qa.spika.com/loyalty/v1//target-expressions/submit
Validates, processes and returns the current state of a List Target expression.
Note that it doesn't wait for the expression to be processed. It simply triggers the processing if needed, and returns the current status.
A calling application may need to poll this method (or the /parse method) repeatedly until the expression has been fully processed.
An optional maximum refresh delay parameter can be passed in, to control the oldest allowed cached result to be returned.