{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xaa32ee76ab8a10f3c47efbe4699477553556bd9926471a14d2d3b5a396284f44",
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    "signer": "0x6ecE2D82C15fa37cd66A99B21fffD5ad71a32457",
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  }
}