UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PX1sD3NzRYQzUClE91hUHMCkUE8WJJuhqCkXlThKV78=' 
WHERE 
  key_id = 'b6d914be8708f13a19c5b664887cc2d43624e1fe2fc02afc0856b2f83693826f' 
  AND (
    token = 'PX1sD3NzRYQzUClE91hUHMCkUE8WJJuhqCkXlThKV78=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )