{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x241bc010288de7df4be73d9abc4ed48b664db9d74aad8be406bb84631b96cda6",
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    "userId": "6600295"
  }
}