{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7e66b71fb7e383c95efc65dc7cbac87994e37d986c2c50637673220ec4d26a53",
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    "signer": "0x29834AE24bB0BA7B887395121646468A2f73f038",
    "userId": "570016156"
  }
}