{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe1f38bb782f373b3d7481db046f10730e4162c3d6abc06b9297ddbbc660e787f",
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    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
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}