curl --request PUT \
  --url https://{appId}.api-{region}.cometchat.io/v3/notifications/v1/preferences/mute \
  --header 'Content-Type: application/json' \
  --header 'apikey: <api-key>' \
  --data '
{
  "conversations": [
    {
      "id": "<string>",
      "type": "oneOnOne",
      "until": 123
    }
  ]
}
'

{
  "data": {
    "success": true
  }
}