{
  "manageEntity": {
    "action": "Save",
    "entityId": "17030",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb932ac871f305b7cddc26424d1eaa49479ab7799582a3596ce6f5393ac36f543",
    "signature": "0x436d2e6aa41140808a43607b9e0302b061e039c1348628d7fe88a2ad2bf47fd43eba7736c642abb1d805bd12a3cdda1f708d70d200cf190688338677cee17e371b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}