UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MC3cXcUM+vHhhRzerVtwMWk+XL/B5mffSBtQNS7Klfw=' 
WHERE 
  key_id = '2138e40aa392e83d4297595852b96a80cf06ab03f18af0518ad8bd7f709a0175' 
  AND (
    token = 'MC3cXcUM+vHhhRzerVtwMWk+XL/B5mffSBtQNS7Klfw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )