The value stored at the "llrpAirProtocolTagData" key of the read-event map is nested map which contains the air protocol tag data such as C1G2EPC-PC and C1G2EPC-CRC for C1G2, keyed by the tag data name.
The value stored at the "llrpOpSpecResult" key of the read-event map is nested map which contains the results of air protocol OpSpecs such as C1G2, keyed by OpSpecID[Optional].