UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zxn9u2uN7zUxRXI0UBzkPM6hEa/gaWRsxvUXcOUMmOk=' 
WHERE 
  key_id = '8c2f5a0c788aec2461802961178287de1ba1ea56092a47f443f0c1d2652b4037' 
  AND (
    token = 'zxn9u2uN7zUxRXI0UBzkPM6hEa/gaWRsxvUXcOUMmOk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )