{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2794b7d0d88ba465f9e2a0675b0654efc378d7dc84edf9f08f10c742db7f268f",
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}