UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bhK2xW2fxXu3mJ4QSzufh8Sls36iVmybN+LQVNU+X+8=' 
WHERE 
  key_id = '323d4fd409748c31e2d39ac93f567d2555c3d5d65ee47115923b9c9e2b2b6d8f' 
  AND (
    token = 'bhK2xW2fxXu3mJ4QSzufh8Sls36iVmybN+LQVNU+X+8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )