curl --request POST \
  --url https://api.sinancode.com/v1/generate/k/sora2-watermark-remover \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "video_url": "https://sora.chatgpt.com/video/xxx"
}'

{
  "task_id": "01234567-89ab-cdef-0123-456789abcdef"
}