{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3bfe7aa80f76c14dcdaec965d59f3069650ebf92da3accb4a25136cd3b6d8006",
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    "signer": "0x0122Edf0b170378764A2498d19389f3396D9262b",
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  }
}