{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2fa8d3dc2d64911c65be204b30b1fd90ad0356976adf39347288a9a2847fe5d7",
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    "signer": "0xe5a18550Cf10F94bF99de3632A134D5faB4b2917",
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  }
}