curl --request POST \
  --url https://api.neynar.com/v2/farcaster/notifications/seen/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "signer_uuid": "<string>"
}
'

{
  "message": "<string>",
  "success": true
}