{
  "manageEntity": {
    "action": "Save",
    "entityId": "1232284196",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xced46d2960639fd16916628f817fc7fb51b725bffc0cfb422216578743cae165",
    "signature": "0xe96ce9b3b5cacc1738a5e38caed4f228660717bdafe91f26806a624399e8145a508adab1cacc0dcb1648c48f30e78874504f096fdb761a7f04b9892db258b49e1b",
    "signer": "0x53d8e61f7BdCd69E26B5AAe8F197464091224DB4",
    "userId": "99786"
  }
}