UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5xBcxbiztRgjwhFOeaGf+Vg6u5SwGIGv4OEgOB4BUBY=' 
WHERE 
  key_id = '81e071989fa613b1a2e698b636456be7bffc1ae65d106810a98c82a9257f0c84' 
  AND (
    token = '5xBcxbiztRgjwhFOeaGf+Vg6u5SwGIGv4OEgOB4BUBY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )