CHANNEL_MESSAGE_STICKER_SEPARATED

%1$@|posted a %2$@ sticker
the text before | is a header, the text after | is shown on a new line
26
Applied
%1$@|publicou un %2$@sticker
28/26
Classy Beaver, Jan 27, 2022 at 00:04
Applied
%1$@|publicou un %2$@ sticker
29/26
Classy Beaver, Dec 31, 2018 at 13:17