UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mPcOPBA6ZTW25NGN9EaKQT7vW79NdUWmqHP7C8KpSJ4=' 
WHERE 
  key_id = '319f5030e523fe21c31ef4420677f899921844226ba9a62ac32230ee18dea538' 
  AND (
    token = 'mPcOPBA6ZTW25NGN9EaKQT7vW79NdUWmqHP7C8KpSJ4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )