UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gdkgwxdX540dgQdmighBpf7zTNLEnArX+APePpqpPzk=' 
WHERE 
  key_id = '4a2e33c242c51851e2419594da3a0faa88ec4806516dc01b641efc19c39f35ad' 
  AND (
    token = 'gdkgwxdX540dgQdmighBpf7zTNLEnArX+APePpqpPzk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )