{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc30cc5c736975b52da7ca040ccce39402aa92ef89dc204f885a256219079b2ab",
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    "signer": "0x2A55cAF879036C4D1970c491e42a869C1f124D37",
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  }
}