UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/Cxgbou5ktrCVmLGzCvMvmauz07Q8SHRDiJcsA+z2YI=' 
WHERE 
  key_id = '83c7e1c1ae6ebc0478fcb5c9e47c324174071d081f7838fef9aa28fea281746e' 
  AND (
    token = '/Cxgbou5ktrCVmLGzCvMvmauz07Q8SHRDiJcsA+z2YI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )