UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CkugbFbHG91MvPOkhnOquvrxHFScEEhLzRWdEBLhcc0=' 
WHERE 
  key_id = '840c45ae85e859c350bd2792f526379d1c067632487c8a73c89f741872842c9a' 
  AND (
    token = 'CkugbFbHG91MvPOkhnOquvrxHFScEEhLzRWdEBLhcc0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )