{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdbc89a493c79945608dc62c02469ba3be844b113c373323bdf3df0037911f565",
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    "signer": "0xdCEd2038393702F47EfF3e1fAc5D5Ffb9abfE03b",
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}