UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '51r97kDk2xSJh9HSrQ301lhHkDZdOI42ElKcBJn+DGY=' 
WHERE 
  key_id = 'ff498399b6492cb50d9242d5e5d71143ee0be81e4e253f6362e2bc30ca61f394' 
  AND (
    token = '51r97kDk2xSJh9HSrQ301lhHkDZdOI42ElKcBJn+DGY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )