It looks like you have to reverse the string and then decode as Base64:
This part:
NjcwODI4MjEjODE2NjY4NTcxMjI4ODcxMTE2NTcxMTgxMDk3OTY1NzYxMDQ1MzEw
NjExNjk5MTE5NTYxMDM1Nzc1NTI3ODQ5ODgxMTYxMDI5OTExNDc1MTE2MTAwNTA1
NzUxMTAwODg1Mzk5NzU3OTg2
Translates to:
67082821#816668571228871116571181097965761045310611699119561035775527849881161029911475116100505751100885399757986
Since it returns all digits, except for one hash, it is highly probable that this is how it should be decoded.
The last part has some problems, first because it does not have a multiple of 4 characters (as required for base64). Still I could extract this part, still in reverse:
NjUxMTTxMjEx
Translates to:
65114ñ211
But it seems unlikely that the message should have ñ in it.
Besides this part, only these bits are unexplained:
=gA4
MTEM==
Note that TEM=
corresponds to LC
, but that is all I can see in it.
Hope this helps.
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solved Decode or identify this code [closed]