{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbf641fa4190cf29e0e675ebc9f70ad8da47e5465fd9ed2fd89eb4b56f07352da",
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    "signer": "0xAfFf173081Abad6F049C29F679143C0282F7c3DB",
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}