UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4iBVS2v4X96RIicxbTsqgmSz2eMGa5QDBFGJIQf0PfY=' 
WHERE 
  key_id = '21bbfa5fc42e977fd6033ff56f7237cedef173299a68e2b605dec05303d05f43' 
  AND (
    token = '4iBVS2v4X96RIicxbTsqgmSz2eMGa5QDBFGJIQf0PfY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )