{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf57851e7e3056a2cd10f753cecf81455df72bddb5658c236fa4fc4f66861f40d",
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    "signer": "0x4Bd99c6c0D0eB2ed200b58e7C1F52c7d3962A3b5",
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  }
}