{
  "manageEntity": {
    "action": "Update",
    "entityId": "991822518",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x07340d4c8cceac3b6c3465f2d7221c5ac86dc0aac24009b1377394136bb25cf0",
    "signature": "0xef2f8f5a664788b8b0bd06fbcd295c827be1f252a325b5b3be7cc8405d94990d02ae9fa04c48db2b442f58f905d9de5734b4597272d57c245a67783974deb14c1b",
    "signer": "0x561246FD13383982AD9e3a97F8D3bec81f63769d",
    "userId": "991822518"
  }
}