{
  "manageEntity": {
    "action": "Update",
    "entityId": "734659738",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabixis7y36wokiaqekizcwcsyrcknsk3z7x2swbu3p7ynyyuadiua\",\"data\":{\"name\":\"N35R2\",\"handle\":\"19860101\",\"location\":\"Siheung-si\",\"events\":{},\"is_deactivated\":false,\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6890e5a327fc0c2bad49ff94908b873e285c13634948926ee608fb5a03d56934",
    "signature": "0xf5a095a421fdb5238c6b2ef7c466b31ab16645a561b7e5faf986fb765ecff914152ca2a5c3ffbfbcf2a31bea4e447d5c96407910c55a146f8ab9842955372e7b1b",
    "signer": "0x5440c29276C58761A1C9fac1CF686DACF3AF49b0",
    "userId": "734659738"
  }
}