{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7a8df51261a29581b457ad59de071f231e67b957dcbeffcd3b7c169c08e07fae",
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    "signer": "0xe89B4eA46De23545E8AcB929115775D26A5e8a8d",
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}