UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kmYjFSiG15U3RzSyOO6UWe1aZLVszaieCTedld6ahvs=' 
WHERE 
  key_id = '245633065273d96062e20d9b3dc1b735e55137c93d8446e819b1b439e840ad65' 
  AND (
    token = 'kmYjFSiG15U3RzSyOO6UWe1aZLVszaieCTedld6ahvs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )