curl --request POST \
  --url https://api.ffmpeg-api.com/v1/directory \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '{
  "ttl": 123
}'

{
  "ok": true,
  "directory": {
    "id": "<string>",
    "ttl": 123
  }
}