{
  "manageEntity": {
    "action": "Update",
    "entityId": "429311703",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x267e5f3b729ae8d004d51ee4bba0e7e96fb9e56fb966fb00070c35ae38a8e005",
    "signature": "0x627576f097718ef036f9589cb8638484522e813c9ad5f0db35cb1a4a287f527a39b7d5ac20b180baac2cb7dc192b2fee83eba1027af390aa4667c1e32d9dfb3a1b",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}