UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6VQCAC4sGiHkw03jVvpBFdT3wvADDskAuAkD3ZNfYis=' 
WHERE 
  key_id = '9512a7f7e50d42647b3c210e43b181f41bd273963c4173b26c3947cc284e6015' 
  AND (
    token = '6VQCAC4sGiHkw03jVvpBFdT3wvADDskAuAkD3ZNfYis=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )