UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zP+8jEw12u5239kdwQpyk8oxOUefQKxyddUB5qegWVU=' 
WHERE 
  key_id = 'a754f14a4e3c793952213a2cbce01832662d1004562bec1e8664d70853b0996c' 
  AND (
    token = 'zP+8jEw12u5239kdwQpyk8oxOUefQKxyddUB5qegWVU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )