UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/D+LoEiFkdQH0OyWv7BNl0yOuwCSURe1HI7ns3pg4Gs=' 
WHERE 
  key_id = '851d4db78282b4395589791826eabadee487422c338d4a176191bc4a8c535f71' 
  AND (
    token = '/D+LoEiFkdQH0OyWv7BNl0yOuwCSURe1HI7ns3pg4Gs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )