{
  "manageEntity": {
    "action": "Update",
    "entityId": "906202993",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x23178c74dc241c2303e047d9282145fc037ae429f2f332148f645b17a21a0c18",
    "signature": "0x6d7d734f89b03fd37b5f1b89a70792b16726b7b6a821afd0a2b075820caf486f3764722124288d8a137682990068ec2ae2d377f8b5586f8f8f972d86743a03331c",
    "signer": "0x6d086bA318a88c56F066d364ae6A329a6AD79f1c",
    "userId": "906202993"
  }
}