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

U: GHKW XL ILS DKEE K TZAQDATKE PMYKEM LTMZK OAQNMZ GHLOM HANH D
AO ELGMZ WHKQ WHLOM LP LWHMZ TZAQDATKE PMYKEM LTMZK OAQNMZO?
K: K XMMT D XAVK.