UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KjHFJdvFz+3HeVBQkbsV5Te9DhknxDFEOJ3tKaTV2lE=' 
WHERE 
  key_id = '56e4c07d1d83e78f54489dab24a0293c278abc9b817ae537f4f6e1e4da9a1fd6' 
  AND (
    token = 'KjHFJdvFz+3HeVBQkbsV5Te9DhknxDFEOJ3tKaTV2lE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )