{
  "manageEntity": {
    "action": "Update",
    "entityId": "740552768",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x338c5fcd6df272582abf5f0df2497ae5295b364c9ca948030bbc5bde3ac04b9d",
    "signature": "0xe1ef6255f2ea82b22d5d8fed167f6fffaf2a4a52560b42f7ea30082bc6998596090931cd4ae4c805be6fbc56419a382b29cb4e45f23a438c3083faa001449b721c",
    "signer": "0x718D4E111f8aB6183e876AbB1496d22ba8Deeae9",
    "userId": "740552768"
  }
}