UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CumxbtUqfTw3Y7SyUqpStVqTtIVTUdMP6n8LREl0k+k=' 
WHERE 
  key_id = '406a7f4c4342bd7e061ec6c5aa56aa7ee03c3769cbd1da0343e1806d4dd9d39c' 
  AND (
    token = 'CumxbtUqfTw3Y7SyUqpStVqTtIVTUdMP6n8LREl0k+k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00020