That flow has three Inject nodes, each labelled "test".
The there are the three nodes "get door control", "set door control" and "open door". I don't know which of these gives you the data you posted above since I do not have a UHPPOTE TCP/IP Wiegand access controller board.
However, you can set the inject node to repeat. It could be once a minute or 10 times a second, whatever meets your requirement.
Then the bit of data that you want seems to be in msg.payload.doors.2. You can use a change node to extract it and a Filter node to only pass the message on when it's value changes.
Maybe something like this:
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