{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x74ba5163931dd8a8565820edf58a6822b1ca50057f79e8133f45c8d99e3323c3",
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    "signer": "0x322abE0CE2af9b8a0d95D9632d5d7Ae191C4F285",
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  }
}