{
  "manageEntity": {
    "action": "Save",
    "entityId": "580550791",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x674964225b2cd4f0a277da13b456e05d2bef0eda0050ae1931ecc6c49cac1967",
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    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
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  }
}