UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lezcOa1n0yps2M85ak6QEWlNafebAnqxXBLce35CqQo=' 
WHERE 
  key_id = '1ebf498cbbcad161e000f2c59b9980711f73cb7dd4936a9c623454c0dd486e66' 
  AND (
    token = 'lezcOa1n0yps2M85ak6QEWlNafebAnqxXBLce35CqQo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )