MQTTnet/Frameworks/MQTTnet.NetStandard/MqttApplicationMessage.cs

using MQTTnet.Protocol;

namespace MQTTnet
{
    public class MqttApplicationMessage
    {
        public string Topic { get; set; }

        public byte[] Payload { get; set; }

        public MqttQualityOfServiceLevel QualityOfServiceLevel { get; set; }

        public bool Retain { get; set; }
    }
}