{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4802483eefed0c28790516e021dfa226d711bc2e462640b0a5d29a063f17040c",
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    "signer": "0x400687b92d58Bdbc2853eA4b1D1a72895e5BB191",
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  }
}