UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YFkYck8/7duXrX/cZqJe65A5QjZUT0d3XoIhNBhLNec=' 
WHERE 
  key_id = '52a98e06da9ed4ad8f5cf1cc5ff05d5f5066f4b0b0f3478a91319156cfb8b82f' 
  AND (
    token = 'YFkYck8/7duXrX/cZqJe65A5QjZUT0d3XoIhNBhLNec=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )