{
  "manageEntity": {
    "action": "Update",
    "entityId": "392596236",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x98be322f026960b9317647eee7036a30aaca7b9b82cf1cacf336bcc7de9cd1f3",
    "signature": "0x8f5bc86eeeadb5f5babfa20d4d4a7e4c444af0c2bb3cc4a86d7e6fcad24d31da6dc6fe320bc42fd11140fad2880d5d86334ba5cece0a488b162e5db0971717ab1b",
    "signer": "0x3F1C98a466b3211b621486F2fed5394602a48C01",
    "userId": "392596236"
  }
}