UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N5SVzfgJLpfW64BOoLBqiAhdK8B1IS1KTidp5nNUI6A=' 
WHERE 
  key_id = '3cf9acc6e2376552aa09dc5b4e7b0e3cced6dfc6c547e3d7e6103353bc08cd84' 
  AND (
    token = 'N5SVzfgJLpfW64BOoLBqiAhdK8B1IS1KTidp5nNUI6A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )