Place it just after a typing sound in a chat scene, so the message arrives after the typing stops, then follow it with a shocked reaction when the character reads the reply and freezes.
About this sound
This is the short message notification tone from a Redmi phone, lasting just under two seconds. A bright, quick chime cuts in and fades fast, giving the small jolt of attention you expect when a text arrives. It feels familiar and instantly recognisable to anyone who has used a Redmi handset, like a quiet tap on the shoulder from your pocket.