{
  "manageEntity": {
    "action": "Update",
    "entityId": "404028185",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraabjjhjo6huus2by6tvwr34hrjjkgdirpuvfupbnqokbvrc6jjv5a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1422839646}]}}}",
    "nonce": "0xc73382149d8bf3f1ba6bc6affee492242b81bb7ce41b7454f0967930cdff6edd",
    "signature": "0x0083dc86ae5331c481d516e84b8c88adc36cbaeb508aed9cd5b364b6f1b437d000e58927eda026dc1d506d8a53d25f8ef9065e38ccbf4bb24a02debf3f04ddbf1c",
    "signer": "0x71675b9d8F5F0a304D0a852517BE98992D120b9F",
    "userId": "404028185"
  }
}