{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8c46bfa7bb22089e4e47c757e30ed37f5a25362fad5e27e794ef04efdd8446df",
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  }
}