[Bug]: Fix the key issues

[aramikm]

What happened?

Currently some of the keys imported into the chain don't have the correct Avro prefix. We need to fix these keys.

The fix is prefixing all stored itemized storage items on schema_id 7 with 0x40

Affected Msa Accounts

testnet

8004, 8009, 8816, 8817, 8818, 8819, 8820, 8822, 8823, 8824, 8825, 8826, 9384, 9753, 9919,
9992, 9994, 9996, 9997, 10009, 10010, 10012, 10013, 10014, 10015, 10019, 10020, 10021,
10022, 10023, 10024, 10025, 10026, 10027, 10028, 10029, 10030, 10031, 10032, 10033, 10034,
10035, 10036, 10037, 10038, 10039, 10040, 10041, 10042, 10043, 10044, 10045, 10046, 10047,
10048, 10049, 10050, 10051, 10052, 10053, 10054, 10055, 10056, 10057, 10058, 10059, 10061,
10062, 10064, 10067, 10068, 10069, 10070, 10071, 10072, 10075, 10076, 10077, 10078, 10079,
10138, 10139, 10140, 10206, 10207, 10209, 10212, 10218, 10219, 10220, 10221, 10222, 10223,
10224, 10231, 10232, 10233, 10234, 10235, 10236, 10237, 10238, 10239, 10240, 10241, 10242,
10243, 10247, 10248, 10251, 10253, 10254, 10255, 10256, 10257, 10258, 10259, 10260, 10261,
10262, 10263, 10264, 10265, 10266, 10267, 10268, 10269, 10270, 10271, 10272, 10273, 10274,
10275, 10287, 10288, 10289, 10290, 10291, 10292, 10293, 10294, 10295, 10296, 10297, 10298,
10299, 10300, 10301, 10302, 10303, 10304, 10305, 10306, 10307, 10308, 10309, 10311, 10312,
10313, 10314, 10315, 10316, 10317, 10318, 10319, 10320, 10321, 10322, 10323, 10324, 10325,
10326, 10327, 10328, 10329,

mainnet

227, 542, 1249820, 1287729, 1288925, 1309067, 1309241, 1309258, 1309367, 1309397,
1329112, 1329535, 1330067,