Ended with below code:
SELECT DATE_FORMAT(FROM_UNIXTIME(`LongValue` /1000), '%m/%d/%Y') AS `timestamp`,
U.Login AS BOPID, U.UserName
FROM opinio.OPS_UserAttribute A, opinio.OPS_User U
WHERE A.UserId = U.UserId
And A.AttributeName = 'last login'
ORDER BY LongValue DESC
Thank you everyone!