Thx for your reply!
How does the whole JSON file look like with all the confidential data removed?
What do u want to check from this data?
(Data after AAAA.. looks like a general payload base64 Maq8wnxbEG........ But first 16 bytes extracted by util btcrecovery (extract-blockchasin-main-data.py) also contain AAAA.. in the middle so in binary it's 00 00 00 00 ..