UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'AMTg79fgqQiQc0lGMSqlcx5QhwNiBHX6W5iFpHLe4rw=' 
WHERE 
  key_id = 'd957faaf35ca30208d4046f9acd704c13e747ff89e2fc3b8ec53acf4d20028c5' 
  AND (
    token = 'AMTg79fgqQiQc0lGMSqlcx5QhwNiBHX6W5iFpHLe4rw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )