curl --request POST \
  --url https://api.l2msg.com/whatsapp/chat/sendPresence/{instance} \
  --header 'Content-Type: application/json' \
  --header 'apikey: <api-key>' \
  --data '
{
  "number": "<string>",
  "options": {
    "delay": 123,
    "presence": "composing",
    "number": "<string>"
  }
}
'

This response has no body data.