{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe232d5281609cc14b8992075adf1c364c1a56bc86161708aa5c5c8185edc1c2b",
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    "signer": "0x4b6B842af75cfAF1fb1Bd7B073C47b1001242a5C",
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  }
}