{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe6fc6b9ae9be357d075143befe19f35ae5711d2fd360293f133fd8f8cf4da280",
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    "signer": "0xcA2fC34A9E583F8E602b6FECA894286a1d17f1e2",
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}