Here is 1 saying encoded using a letter for letter replacement:

S: HPZM XWEK Z HZKB VWV VZLE CWY XUOOEY?
Z: Z DYUKB KZFZX, Z PEZYMG KWTB, Z FWJEFG EOMYEE, CWFFWHEX RG
Z XEFUDUWTK XEKKEYM.