{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8ea94918ab85340c1aa9b23d015ec97e17d9059c29a81fec4845c34ee05c64cd",
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    "signer": "0x65fE0Ba212131b9f06d4B7f9edE5c43BC4527fC6",
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}