curl --request POST \
  --url https://api.zapthinker.com/router/handoff/summary/{instance} \
  --header 'Content-Type: application/json' \
  --header 'apikey: <api-key>' \
  --data '
{
  "remoteJid": "<string>"
}
'

{
  "remoteJid": "<string>",
  "summary": "<string>"
}