UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '50U83P9mzojN5VUSe7qAEAJEmiSCk9c+6slp84e41Oo=' 
WHERE 
  key_id = '1af74f5addec3a72704b95e76c99f2a47fd812e6749b2321c57845146c5f607d' 
  AND (
    token = '50U83P9mzojN5VUSe7qAEAJEmiSCk9c+6slp84e41Oo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )