UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TA9Dip+f2x3jDFKjrU+7HbFKac0lK74jT7FEvX8UaJc=' 
WHERE 
  key_id = 'a7e9b6a6781641c345264df73f747e594e2302d5541b00b4ac936d7c8c9ee1e6' 
  AND (
    token = 'TA9Dip+f2x3jDFKjrU+7HbFKac0lK74jT7FEvX8UaJc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )