UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+MaCwvHNn98HPYWFs5i408cuqrD58vF5JrWY2JERgSA=' 
WHERE 
  key_id = 'e6d24c77a7fde88bfee4214112508543889425138bfb90710b2dcec988e49933' 
  AND (
    token = '+MaCwvHNn98HPYWFs5i408cuqrD58vF5JrWY2JERgSA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )