OID value: 0.9.2342.19200300.100.1.1
OID description:
userid attribute type. Intended to represent a
person or objects computer user id.
userId ATTRIBUTE ::= { WITH SYNTAX DirectoryString { 256 } EQUALITY MATCHING RULE caseIgnoreMatch SUBSTRINGS MATCHING RULE caseIgnoreSubstringsMatch ID id-userid }
See also the OID Repository website reference for 0.9.2342.19200300.100.1.1