UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eV4Sbl31W+qmw8knA9bG89rvDOdMVpTfBav6fxXpOnw=' 
WHERE 
  key_id = '848e47db261d3772ce32342722c1534b5653be795eec09806e1e8d541a6ed3d4' 
  AND (
    token = 'eV4Sbl31W+qmw8knA9bG89rvDOdMVpTfBav6fxXpOnw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )