{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x17d6c49c30d1574bdfbdd7b1ecef698c42a133f00a6804436c26447550239d85",
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    "signer": "0x7BeE6A029868871221bFC265e0DAE4553A4eC744",
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  }
}