{
  "manageEntity": {
    "action": "Update",
    "entityId": "861576501",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x76350577768626b9e9802de9fec3a926905685b3fa113e06f1adb02f131c217b",
    "signature": "0x2df06c527146cb2a04e72c860ee1617c6fd6fb3852ddca883b1ba4874dbaccea00c069bc9f5b6e3600948da5ff9bb08ab0610f3d9111961191fab732922a8fe41c",
    "signer": "0x1E690f8e14A0D63a4b444c3bf7f582f98FB18b36",
    "userId": "861576501"
  }
}