{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x29f1fe9f7dd1b2554f269f385f57bbb7ed8222e20550c707a6f3ac30e106a302",
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    "signer": "0x22f321A4Fb7b09fb76CeC63E4Eeb7969459715ba",
    "userId": "969756963"
  }
}