{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdb2ed66dc2a7d4aa694f5cac2e7ca8a72b1033ff6abcd96f64c83760360286c3",
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}