UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4p0n6rxaE95xYcUKgFIE/cVPCx+n5//AuM4zNCwTNXM=' 
WHERE 
  key_id = '9728d613628fc5670858f62e815cc7f4ba5831208b54344d465f2cac3aa3ef95' 
  AND (
    token = '4p0n6rxaE95xYcUKgFIE/cVPCx+n5//AuM4zNCwTNXM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )