UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lffeKSu0x9xM7oVOyWuhHPBk7WRAlqyfDrsugldlk5E=' 
WHERE 
  key_id = '542a9fd066084ccd71c3cf463e786035ac340fdae034dc32c0fd2054b811784f' 
  AND (
    token = 'lffeKSu0x9xM7oVOyWuhHPBk7WRAlqyfDrsugldlk5E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )