{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd18d2517d36be1d78143687c590831fd36a80b24edacad0c050207f6217aeb9c",
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    "signer": "0x05B6178eFB70dCc360177e9BD14cf7CCdAea9526",
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  }
}