[UPROPERTY](Programming/UnrealArchitecture/Reference/Properties)(VisibleAnywhere, Category="Concert Data Store Message")
FConcertSessionSerializedPayload SerializedValue
The property value to add if it doesn't already exist, in its serialized form. This implies the serialization is consistent across platforms and that no padding is serialized. When this is true, the serialized data is compact, binary comparable and the data store backend doesn't need to know the content format, it can only map a name and a blob and use memcmp() to compare and exchange a value.