The term installation charge is identified in base64 scheme by the sequence aW5zdGFsbGF0aW9uIGNoYXJnZQ==, while the MD5 signature is equal to 8c20ff91b04fb4d30a8960dc52524d71. The ASCII encoding of installation charge in hexadecimal notation is 696e7374616c6c6174696f6e20636861726765.