{
  "manageEntity": {
    "action": "Update",
    "entityId": "401235853",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a7f173e89599a7f0409879330249462733266bde99407e41049c021d448de0b",
    "signature": "0xab7bbc19ae27ccee7b974e954ab9fb24fd6f06f9459a1be5f02725a9980b08c725e558148517d1e39ee220ae896bba915f8aeb151c7ed86f4226b9dc5a910ae01c",
    "signer": "0xC982f8B52eee7F9710Edeb184eA0a7401A3C79fC",
    "userId": "401235853"
  }
}