UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/+aGzpzhxm7kOoQx9MAN2Wv2ktB7/fPsOMY7EuGKtZg=' 
WHERE 
  key_id = '751797a15420856eb574095463df03190d360db19a279107f48bacdce0729200' 
  AND (
    token = '/+aGzpzhxm7kOoQx9MAN2Wv2ktB7/fPsOMY7EuGKtZg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )