{
  "manageEntity": {
    "action": "Update",
    "entityId": "998837220",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a4a131892b75825365dacb30288dd73f3ce8b8a0cf04804201a2262fba60a03",
    "signature": "0x2b7bb8ea01fa3fad7135e5f71b3644858010c459b0ad7bd7f8a9a2d5386e0bae44bf1140c658472fb871073498d0c689e063adfa04c479454f369efeda31ebed1c",
    "signer": "0x06319Bacff0A4B00a2ba469F00671687201fa74E",
    "userId": "998837220"
  }
}