{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd0aba521b7d0daa9961f7e9f4b3281562e8c039bbb85cf369ddaa5a5901a8ce6",
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    "signer": "0xDFbB7dd2B54113B48Bdc36072271502bF4BFF1F8",
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  }
}