{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbe4f2869103e7d96ba9237659c9e80e386713427f5b62e433f81a16f209e9d30",
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    "signer": "0x0e59dd54d291dD83fa0fb7a81602d56F42457796",
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}