{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x28d416d8dcde1e5eecf092c94f992d24c7e6c15f159e3acda59717a0749690b1",
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    "signer": "0xcaFF37d75de2d0273bd0e1DE9F138f4b1809708E",
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}