{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbc60ebcd1d1b43f8c46d4c893ce67643e994f1405d9b1d5d94c456bfc2f284bd",
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}