ImportantIn case you need to send an External ID for custom postback, use the parameter tag={External_ID_from_traffic_source}. For subID, use website={Your_subID} and for sub_subID, you can use placement={Sub_subID}
Offer link
http://www.rotationurls.com/offer/142214|17609?data1=Track1&data2=Track2&tag={External_ID_from_traffic_source}&website={subID}&placement={sub_subID}