UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'meKhXECcauj8rfngqHeavyhhZiqPRKEdC2pMSt3egVE=' 
WHERE 
  key_id = '39c1754ff6dd3172d3706a45d50d27a693318892e84567c28c73acdd10916de4' 
  AND (
    token = 'meKhXECcauj8rfngqHeavyhhZiqPRKEdC2pMSt3egVE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )