{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb3e7d75646f5ecd9010a6b8ae4fcf6d6f902958e18998b2204ac6e5c9df9d67c",
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  }
}