{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xebc9a061cbf0c7b89f14c1f61b48814819e7cfb0a6f38cea6ff429bc47a83117",
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    "signer": "0xDa820cEfD0a816B95Cb6506bd2c0bb554f3b30c7",
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  }
}