UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qUbY7GQXL1NUf+wEjC2bBYFB9XDqYRGHFtnw6w1AfDg=' 
WHERE 
  key_id = '4492355ca7b0973a6e91aec5020a5852c30f7de7762c481bfd17df1396ce4778' 
  AND (
    token = 'qUbY7GQXL1NUf+wEjC2bBYFB9XDqYRGHFtnw6w1AfDg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )