UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CN4jIf/4WYOT/XJ7f0nBNokGXaJR18/dqPiXwi9Ikvc=' 
WHERE 
  key_id = 'db31ffa3a5dd77dbd0b60d4c06070d7f2deeb36c0435f65affc1c4e52cb94790' 
  AND (
    token = 'CN4jIf/4WYOT/XJ7f0nBNokGXaJR18/dqPiXwi9Ikvc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )