{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf7fccd92fc0e21fa139c7bec0192a010dd8168be3fafffbb5500be407968ed3f",
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    "signer": "0x092fc310728c8d52dE372E3e05C135AC5A20A766",
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  }
}