UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xAVUKel7CNqDmnKyrZ/00AJt/86RYIuf4YJPGML0UUk=' 
WHERE 
  key_id = 'c3b6fa0e1be647b7ba135099fdc35c05c480f0e535951a5850e21afab05fffb4' 
  AND (
    token = 'xAVUKel7CNqDmnKyrZ/00AJt/86RYIuf4YJPGML0UUk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )