UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'i8LCTDvjM19HrJRTs0qUQfl0XsPwGaJ/ETezrnynPA4=' 
WHERE 
  key_id = '3c53982d59f52c2085fced8e3a63efcc92dc46c391a03082fb5008ac678b5e20' 
  AND (
    token = 'i8LCTDvjM19HrJRTs0qUQfl0XsPwGaJ/ETezrnynPA4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )