{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x650aa83a266665f97cb4499b27deaf7de8aa3a16fc0eeda6dcbb2b55c9e018f2",
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  }
}