UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'P+La38bElPoqtW3Wgq/363Fcdaef3OwL4pv2RriNmDU=' 
WHERE 
  key_id = '6e4b945cee64e96f76aa599aa441e3b20cb3d49ec7fdc36b205300739f496c8f' 
  AND (
    token = 'P+La38bElPoqtW3Wgq/363Fcdaef3OwL4pv2RriNmDU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )