{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9487b65009682a6777aeab7f0c7d381cfa71dffb3cd572dbb902b11675d294ae",
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    "signer": "0xF4DF2D2931c55efC8d4A95Ff5b05579fC73e6565",
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}