{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1f5a490d24f10142a25f276e1870b6b6d91a5f18d76c3f0e4dacb8fa09b7e34f",
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}