{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe029aafb011f4d7b487c15bc1f07a2b339e679a07cecd60ca55732f67a6524bc",
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    "signer": "0xFf41F99020d8F1233aCcCAAba96B21eEb5AadA30",
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  }
}