{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7b6e885b8b38e2ec341e5416d3c4169c7c53c3e2895c90af84efffeb1501c10f",
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}