UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BpPXAGhhIYPgsAWxNQw2xZc//60wtbCb69t2V88qcFg=' 
WHERE 
  key_id = '20fb7c7bcb45546dbc755330276baa0bd86494f86ee201f283fe243cecba984c' 
  AND (
    token = 'BpPXAGhhIYPgsAWxNQw2xZc//60wtbCb69t2V88qcFg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )