{
  "manageEntity": {
    "action": "Update",
    "entityId": "902455820",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xefd53497d31674938d292a8fee1811c36ecea684ea3ef264567a68616893c2b2",
    "signature": "0xbdec698fd3ef86ea93ede4cf966b61788adc73136346c3d6240b59310f46f1bd5979cb73e24687a10ecf5ffcf0e0ce9779f428b6faa04307addba91cb858220f1b",
    "signer": "0x005beD30Af7a301B76fF764D16DA247C754e0535",
    "userId": "902455820"
  }
}