I’m not entirely sure what you posted here in hex. From ASCII converter it seems like a coinbase tx. Thing is the data in a block is serialized so it requires less storage to be stored on a HD. You shouldn’t concern with this to much, its more of a technical detail. More important is to know what is the data being stored
A great resource you can check about the block structure is chapter 9 in the Bitcoin book:
https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch09.asciidoc#structure-of-a-block