{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x51d7d67e59e6159338af02e05c0b696473b20335c22b4f96aed30f05cb1ee676",
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    "signer": "0x0Dd5FB5f8A42aafaA0Bb4E66d1860c057A1E3d36",
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  }
}