Place it at the start of a chat sequence, just before the message appears, then follow the reply with WhatsApp Bass Boosted for an exaggerated reaction, or cut to Olha a Mensagem when a character finally notices the phone.
About this sound
This is a brief two-second digital alert, the clean bright ping people associate with a new WhatsApp message arriving. It feels instantly familiar and slightly urgent, like a phone demanding a quick glance, without sounding alarming. It comes from WhatsApp, the messaging app used on phones and on desktop, where the tone signals an incoming chat.