UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QAl55M14+sBLpdcKi08YJHhhbLznVMF2NuKnvkTlBg8=' 
WHERE 
  key_id = '81f68df1836f8ba0236fb2dfb890593c5e9e2508a99318389b8a8cbe1e6ef775' 
  AND (
    token = 'QAl55M14+sBLpdcKi08YJHhhbLznVMF2NuKnvkTlBg8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )