UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8MXqMGeowAJYLj5OKOH+vn9yFH0Px1dGv28oO+GfjUQ=' 
WHERE 
  key_id = '39f99ac0cffe903f8e1193c7b4047d23543f6aa68dd6f833880dc746fa96c20d' 
  AND (
    token = '8MXqMGeowAJYLj5OKOH+vn9yFH0Px1dGv28oO+GfjUQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )