{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x33367d3c3ceae2d544ca9a8f3efcee8ca7ca03064affd96c650eb64af6fffb0f",
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}