{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2b91a888a28fec25356dbb54b9a84f76b08005b27ee37ea3dccc302f57f0ee55",
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    "signer": "0xa568c4C22e835d09d80B7708D0032E8D4d0a6671",
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  }
}