{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x82a9825721f8405267af0b5dc59e1ce95a83aa7b3b5d68c609a4da8dc3e42322",
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    "signer": "0xEdcCb2e310b572E9742E3aB95E22eF128F11F483",
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  }
}