UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ST0u1ZsTdY4tB9Y4XMyom+cB7GnWrNUptrKrFD18kq8=' 
WHERE 
  key_id = '50b11f68f86852a5e29eb1cf4e2f09afc096b29c1d84917bf50c0944b2dd9c91' 
  AND (
    token = 'ST0u1ZsTdY4tB9Y4XMyom+cB7GnWrNUptrKrFD18kq8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )