UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CIwUG9ffZPYmYvWmajspzkrYy0elXaa8pXGDtoglj0Q=' 
WHERE 
  key_id = 'b31952cfd4b4a07d97b8b5a592c898cfb0ded1c1013a73a344392795efb40335' 
  AND (
    token = 'CIwUG9ffZPYmYvWmajspzkrYy0elXaa8pXGDtoglj0Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )