var data = {};

// Process data from incoming message and metadata

data.senPayloadHex = msg.sentPayloadHex;
data.deviceName =  metadata['deviceName'];

// Result object with encoded downlink payload
var result = {
    // downlink data content type: JSON, TEXT or BINARY (base64 format)
    contentType: "JSON",
    // downlink data
    data: JSON.stringify(data),
};

return result;