{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3f5f81bd1e036436c3cd54007c900493ad13d3f67b15dd0003575eb6cf142502",
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    "signer": "0xEA6429c5fcFa3b22c153B9a9317367B1c7766000",
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  }
}