UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3IZT1Zfurh59F6o5HgTmX7cf0vQyowLXSDAiWnuNApE=' 
WHERE 
  key_id = 'c20cb466ef0d24d6d3aa171784c4b9be6788ad8abdd7dc0f9f679d462c24e963' 
  AND (
    token = '3IZT1Zfurh59F6o5HgTmX7cf0vQyowLXSDAiWnuNApE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )