{
  "manageEntity": {
    "action": "Update",
    "entityId": "516393482",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc80236d47df4a3ceb457661748bb5335377bd7cd53d990a80d4f302faa3a7123",
    "signature": "0xf976c9f9701bd3d5e5c5518179d89b67274991604275ae6db8632d9a7f3fbe827922753856c3586eb900b6b2bc64dabd7c4a4802b78fe9e9fdbb5612c5f48ba91b",
    "signer": "0xDfBA410697477D4aFf5e29417a660EF7DE47D640",
    "userId": "516393482"
  }
}