{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1f14944b1f19043c1d5c99ea8325ecdcab8e3e31ff7021e240f9cfafc44a7b01",
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  }
}