{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3bba6eb2b8ad9b783f7f50c7f0845a793495d5f0fe10f3d3eba1f0d968e6d4a6",
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}