{
  "manageEntity": {
    "action": "Update",
    "entityId": "401235853",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8c664109e48cf8cc67c3014cf870faee9568973ce9a6e7ade7a87c89db2347f6",
    "signature": "0xa5def91280ad77b32c90ad0aaf0465daef91b1d6fe75e32c3b6f017cddc367f3623c192874569dcc4cea52e1ea246e3f3b2cd9ce5d55f9cce371dbab383f15ae1c",
    "signer": "0xC982f8B52eee7F9710Edeb184eA0a7401A3C79fC",
    "userId": "401235853"
  }
}