UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lJgKoZnYhnTmd7B+cW365PXEg6+QjvWrzsFhBjQa1QI=' 
WHERE 
  key_id = '0d17c833a47654745e2d3aaad5dce7c94bc0821ea3271b2316007df0a27f07e8' 
  AND (
    token = 'lJgKoZnYhnTmd7B+cW365PXEg6+QjvWrzsFhBjQa1QI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00042