The term over the counter security is identified in base64 scheme by the sequence b3ZlciB0aGUgY291bnRlciBzZWN1cml0eQ==, while the MD5 signature is equal to 5278252ad82fe03927790566887ebd9f. The ASCII encoding of over the counter security in hexadecimal notation is 6f7665722074686520636f756e746572207365637572697479.