Martin, this will depend on the Thingspeack's API. There are examples on how to send data to AWS and Azure on the Digi Support Page For Remote Manager.
AWS:
http://www.digi.com/resources/documentation/digidocs/90002346/default.htm
Azure:
http://www.digi.com/resources/documentation/digidocs/90002345/default.htm
The Programmer's Guide shows how to build a more generic push monitor:
https://www.digi.com/resources/documentation/digidocs/90001437-13/default.htm#reference/r_ws_monitor.htm%3FTocPath%3DWeb%2520services%2520reference|Monitor|_____0
I hope this helps
-ECT