{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd76e8e81f633b04e9f9feea56600d9c8453ec58212bad020e97adc4212c1bbde",
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    "signer": "0xAb74269b4Cd5892c97eACCAf5FCb7B0D78d50b35",
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  }
}