{
  "manageEntity": {
    "action": "Update",
    "entityId": "483266798",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13c3a4ac28febbb66f3fc6033425287a58fcfc06d7d89ddfe94d3fef17be4384",
    "signature": "0xeed06338bfad0a2cb9d11e7740653b44c5d46ffaf11ac189d7d7a48a2667f6276a376b795c206773b5c0bbb08ac5e98ea6d8ed5e122dc2c73e36d10d064fe58f1b",
    "signer": "0x328Cbe1a5E28cc4051CF35095df8009Eba16C666",
    "userId": "483266798"
  }
}