{
  "manageEntity": {
    "action": "Update",
    "entityId": "858465138",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4e2334bca57e8b3f946a255230816908055248f18f1a9a34ef78f460506ffe28",
    "signature": "0x56c6d3fef664d9dce2edf938a3030f3b882ea15d4fc863be1038274048ec95be45684032d366af3c66832fe92212db9c3a38e27559f9fe42e2de473137370f671b",
    "signer": "0xb11A87421a60283b875d2F958D27356167224eF2",
    "userId": "858465138"
  }
}