{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x409f1f0fa2677369307aea4160f75ed0efe0997b06a2462897eab188d36c87dd",
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    "signer": "0x2e9d6f01b294247557bb679bDC02131A00c596E3",
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  }
}