curl --request POST \
  --url https://api.crunchz.app/api/send-message/seen \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "message_id": "false_xxx@c.us_3A3729D867221FE0B9BD"
}'

{
  "success": true,
  "message": "<string>",
  "data": {
    "status": "<string>",
    "type": "<string>",
    "timestamp": "<string>"
  }
}