{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x757cdf6f7cd739b765fd2b3fc602cd4357f6696ed572bb3d296ca1fbc5ded82c",
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    "signer": "0x339DcD042D5dFC15a882516Ad5c40B4bfD62dF27",
    "userId": "213553850"
  }
}