UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iUaHqCOz9Bj+bewUrZZ8ZDCe8lXZ+dnSFNm8zU7nOSg=' 
WHERE 
  key_id = 'b4ce67b235a3c54218e9bb7e0f93c2e8570f7442484c09edeece7f8a4435c4dd' 
  AND (
    token = 'iUaHqCOz9Bj+bewUrZZ8ZDCe8lXZ+dnSFNm8zU7nOSg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00048