{
  "manageEntity": {
    "action": "Update",
    "entityId": "30178579",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x73922152bf937b74904e6fcff944ad6d9df8316de6798282e131696bf55a832d",
    "signature": "0x28332d8e81f58df0a1967f0213dcb10f708f5e54f5a8710a6884947015e735924f537c47a3b6c4068e705d07c530b82ea8003525d9ed94b568e77aca48ac4bad1c",
    "signer": "0xba95Bd83fbE75024CfF58710313684f316248fB0",
    "userId": "30178579"
  }
}