curl --request POST \
  --url https://apimgmt.cometchat.io/apps/{appId}/settings \
  --header 'Content-Type: application/json' \
  --header 'key: <key>' \
  --header 'secret: <secret>' \
  --data '{
  "settings": {}
}'

{
  "data": {
    "<SETTING_KEY1>": {
      "success": true,
      "message": "Added setting(s) successfully."
    }
  }
}