What do you mean by the word (payload)?
On PASC sub-accounts are called payloads. If you go to Poloniex and get a deposit address for Pascal coin you use their account number and a payload they assign to your account. Any deposits to this account and payload get credited to your PASC balance on Poloniex, for example. Payloads per account are unlimited.
We all have the same Poloniex deposit address 86646-64, only differentiated by payload.