UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PlTEVf/QlcS11xH7Ts7c3LFHVnx2fkUeq7AffWVjnio=' 
WHERE 
  key_id = '28cea8e8ffb2138688a2231519ba397e0b02eac01fd422598be74e9c57324757' 
  AND (
    token = 'PlTEVf/QlcS11xH7Ts7c3LFHVnx2fkUeq7AffWVjnio=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )