UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cA5nkXiRnKjLaW6CLvHknxNCx7NGgA7o2/A4YaGqHF4=' 
WHERE 
  key_id = '210b864cdf4d9e413f4dbe206ffd428ed7f8dd695be1005496209cfe5fdc771e' 
  AND (
    token = 'cA5nkXiRnKjLaW6CLvHknxNCx7NGgA7o2/A4YaGqHF4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00042