UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wMuhqhAjuYl3eZVjmZJ0UffAFibQbimyCgK1DhicZY4=' 
WHERE 
  key_id = '251dbf45ee361fd0642f6fee8041ad5d81e9215a5728c789201f626899d031e8' 
  AND (
    token = 'wMuhqhAjuYl3eZVjmZJ0UffAFibQbimyCgK1DhicZY4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )