{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe1931f72f20af2d1992b8fc569f0b67e699e501e53d0f0b834503bac329e4557",
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    "userId": "828122082"
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}