UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fbyM6bviKUSorkZuRh9pw7uYTcxBqvJTZEJDzAAyxhU=' 
WHERE 
  key_id = '5b8bc0d29e907d9ddb2024c158f720f8196ed1d68df0fde5d059dd67c03c5623' 
  AND (
    token = 'fbyM6bviKUSorkZuRh9pw7uYTcxBqvJTZEJDzAAyxhU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )