UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QPjFI9cjoXZKw9T9IuL5C74vA6yY4ZBzrqqkXUk7K6c=' 
WHERE 
  key_id = '68edcc84725960ff8f4239060e014cb8de816cbeed4a48afe2efa11783cf6b3a' 
  AND (
    token = 'QPjFI9cjoXZKw9T9IuL5C74vA6yY4ZBzrqqkXUk7K6c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )