{
  "manageEntity": {
    "action": "Update",
    "entityId": "848223898",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x06f3b7e9aa77d2f5edab5871925fa3b204cc43c477d8af30b65b8b54f680862b",
    "signature": "0x0dcd23fd41df89a2efd4cb741aa28fc91cf8e8c1807969edc86d64356fc4a2ad1bffaab1df19e9db26ccd40444668e657fe81fc4f8be3b5a16f06b96b3212ad71c",
    "signer": "0x683f7BB289A26D8955d39aBd5ce75d055A532bfb",
    "userId": "848223898"
  }
}