{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x36fae8dcc0ce5cef2ab5c69b35a12e6148fbd02b5901a46000e53815d40126f8",
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    "signer": "0x1815853A3D3f5b8c2490bD12f96176a3a4Db22b1",
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}