{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x768e609639b6460685b7c236a8343235a4e292f1da4b7c0a6933f36b3ab53ac7",
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  }
}