The term muscular structure is identified in base64 scheme by the sequence bXVzY3VsYXIgc3RydWN0dXJl, while the MD5 signature is equal to 1f2a8683b89316d0332bc3a463a1a406. The ASCII encoding of muscular structure in hexadecimal notation is 6d757363756c617220737472756374757265.