UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6Tk8G8h6hC9hndI9cHZDRicsbD65nIi9NIvboJpgW3E=' 
WHERE 
  key_id = '1b5085cce7a70687a3ac827a893a27cdc41cf115713ff2ad3e7e707dace1897b' 
  AND (
    token = '6Tk8G8h6hC9hndI9cHZDRicsbD65nIi9NIvboJpgW3E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00033