The term customer's broker is identified in base64 scheme by the sequence Y3VzdG9tZXIncyBicm9rZXI=, while the MD5 signature is equal to 0a6eb021edc47350bc560c3af4a5a4f5. The ASCII encoding of customer's broker in hexadecimal notation is 637573746f6d657227732062726f6b6572.