{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x038b7761e79c2a250d9ef7ef834e999e6e27605f4d87d8136330a31327a224fc",
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    "signer": "0x5B59552d97CF66F680bfBd6bFDd3b840Bb2E962A",
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  }
}