{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa9c6b50c17c055030c6eb196b2273af21b39522f20489b4fd397b4a3691157f6",
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    "signer": "0x2d9dE0031960aD6f53e402E622254d2AeBc7307D",
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}