The term check-out procedure is identified in base64 scheme by the sequence Y2hlY2stb3V0IHByb2NlZHVyZQ==, while the MD5 signature is equal to 39b4c73be34d927effef2ddd939e3eec. The ASCII encoding of check-out procedure in hexadecimal notation is 636865636b2d6f75742070726f636564757265.