{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0b881ee8b96cd96d824b4fb149722e54110c06e641c3eb67bba556eca207e034",
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    "signer": "0xe1d49CDcC737a518797dFd4D669EbaAdcED5fe6e",
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  }
}