UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MdYRSPRlpNSAlVlMN5dHx+lBf2EOTNnE5ZqU2Ay5noI=' 
WHERE 
  key_id = '83dea794afc2eac2d048037f350d8a8691e649a5917da60d017336dfc841a642' 
  AND (
    token = 'MdYRSPRlpNSAlVlMN5dHx+lBf2EOTNnE5ZqU2Ay5noI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )