{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc3d0677a5480eb177442ded5458074d10b9e7a7a4dcbefd8f1d1f9bfa205b16d",
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    "signer": "0xeFccDce3d111c4a3785e0750f8fd608677870acC",
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}