{
  "manageEntity": {
    "action": "Update",
    "entityId": "435191941",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x889d72213bb6a6705278428b3d1ee34aaecdeec8b70093e70c5953ebce01e00f",
    "signature": "0x9dc92d6941d31911e9af447ef2a3e88dced9af47117c8693a7e186607afbf44b740801fb78a47b8b515a8847e61055df707901c6ff003254698779452a2abc331c",
    "signer": "0x26f240Be07939c83Fd72792d614Bda1624022E00",
    "userId": "435191941"
  }
}