UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QATqtWbYS+Li+/0g11ZdT/Y6Kzw0pUY1aNNAicoDEUc=' 
WHERE 
  key_id = '81b16ccab2dc6e8351afc88598d292c089f22ada612df1b73c06a05b60e57fe1' 
  AND (
    token = 'QATqtWbYS+Li+/0g11ZdT/Y6Kzw0pUY1aNNAicoDEUc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )