{
  "manageEntity": {
    "action": "Update",
    "entityId": "983416336",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6e7a69d0225060f93d408a62108951c1a21328a215e1445d188b836065caddce",
    "signature": "0xfa4941d9d22164aabcd07ece96186f354ad4949a7f404593bd9c193e740bf62d21ffa6a51a12eb787f676abee867514c5df98dd3b056d3f4a66655a37b6046341b",
    "signer": "0xb26450121c10990B28BE7BC48daE105dDedE3B81",
    "userId": "983416336"
  }
}