UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Px8XrkfVS+wGWNALesnvNwsa4KhUcpCeK6cObdoptK0=' 
WHERE 
  key_id = 'f5c8c10fd3a74393cd6bee8a7a8e297f94451ce82fae7301427b0c66fb04733e' 
  AND (
    token = 'Px8XrkfVS+wGWNALesnvNwsa4KhUcpCeK6cObdoptK0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )