UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YrUdGT7UItvjlljrE85Jv/msUXo87boK2npgUZqo18Y=' 
WHERE 
  key_id = 'cb6bf0bce1821ab6d8c22cdeb569771ead4ce76a8c089d65320b83f227081e75' 
  AND (
    token = 'YrUdGT7UItvjlljrE85Jv/msUXo87boK2npgUZqo18Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )