{
  "manageEntity": {
    "action": "Update",
    "entityId": "582447217",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieray6c5wvgm3zaud5fjluthwppg5uma4hnfwb2b7u6auk3dfgoz346a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1220067455},{\"type\":\"playlist\",\"playlist_id\":404642876},{\"type\":\"playlist\",\"playlist_id\":1706820977}]}}}",
    "nonce": "0x828eb55d0a9c33c71dbe4097174953d189a3351f5990017dd124aa280c0cf246",
    "signature": "0xab0629252e103680b630f4b69ae76a719af49cbc4991df1255a07792b8dcbc344e56076109daba251d33b4079a98a245ce024fe1521ba4601f5b83acb535bc631b",
    "signer": "0x8e5A6D0829f4226DC492757b1583CBd16b7666B3",
    "userId": "582447217"
  }
}