UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cnAPKXu3hQQsV5nJFpXMLOzU03OJmZ+hydRfThB77+I=' 
WHERE 
  key_id = 'b3eff9decac5286d4dda1ffbbb7cd35b0dbd8334266ab35e0c899f2ba51c49a3' 
  AND (
    token = 'cnAPKXu3hQQsV5nJFpXMLOzU03OJmZ+hydRfThB77+I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00033