UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6JpOo4yOaLxBJMipOhul8rseE2X2n+v+FebA1upV/uo=' 
WHERE 
  key_id = '8c9758b0834cb631272f2ff5b9ca9e73f1da79fa66d49f678c52949b1dc65e1f' 
  AND (
    token = '6JpOo4yOaLxBJMipOhul8rseE2X2n+v+FebA1upV/uo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )