{
  "manageEntity": {
    "action": "Update",
    "entityId": "350957781",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5zov4rnfgdhd5thqjctswv3vohwrdh3q5aszbpleqan2youhwm7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1851424531},{\"type\":\"playlist\",\"playlist_id\":1065725673}]}}}",
    "nonce": "0x703f7357aea5901c4f1903f8d51aaec9a1e223d6f5dbf9c0648fb5df8be11e5e",
    "signature": "0xac19d1b73e853fc1a5b9c34fe9fe2ea4159e7e1c9b9d53867a342b3f982b1875384cc4beaa4d240c3726ee1117d6f4ff05a49943b303f3b79342e77f8f3380b81b",
    "signer": "0x9742BFcda3E998678A9f313149c705E80899d5c5",
    "userId": "350957781"
  }
}