{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe37adf5f523ac158d24bcbdb2e31a8363bb188337120922d7297b9a460629c2d",
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    "signer": "0x2e3Dc55902048e37B40b6e7DedEe665DBB018f89",
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  }
}