{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3ead97f839f562cc952b2ff1ac597c414ec1bc6dccf13618b5aa9ff076da0906",
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    "signer": "0x3D0cD0211F5DA2575dA4de4F55D77Ee5F363Cf68",
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  }
}