curl --request POST \
  --url https://api.bibigpt.co/api/v1/feed/markSeen \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "channelUrl": "<string>",
  "timestamp": "<string>"
}
'

{
  "updatedCount": 123
}