{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe2c13adaed1f1c68917966b525396ad64bab5ad4729aa86c6d983dfa1b00a35c",
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    "userId": "474128218"
  }
}