{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x02fc3571e3ca03a842050ca286b28603e85852f2224ef08c9c4ff332c6078a27",
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    "signer": "0xe6896f375EfDD7aE22ea0E0958a36f1Ac1861a95",
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  }
}