{
  "manageEntity": {
    "action": "Update",
    "entityId": "663695959",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x624c3fb4151d845c821b40db56b16cc75812bd2e611425e55f7433481d7253c7",
    "signature": "0x5ff286604d3eb4e107efaf4cf0d9cca36fa55fe614aa5037654e4bbbc315015146645c93b4dc05492f7d9de9aaf15e3ec28a0a1a0016daf90dcfd796858410601b",
    "signer": "0x59b2AdB5457e737F50672cfd7783475958BA125c",
    "userId": "663695959"
  }
}