{
  "manageEntity": {
    "action": "Update",
    "entityId": "265134730",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracxwjryd24fablm2ad2bzqzqtqjrn277my7qbv6ebhp5dm7xdn6ea\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":458928118},{\"type\":\"playlist\",\"playlist_id\":388439540}]}}}",
    "nonce": "0x338ec9a299c7daed6fe81f5ea72a6ea4b3e3c6c9a0e0230ac3e5a05c3ee6f4de",
    "signature": "0x45f0d6290e77ff71aef86c2216de4ba5600886c641db56624506bd02162a121f033aff1114183bb654b1d07d205166a0e8e8229b08f5b38d42e17a3884c19d681c",
    "signer": "0x27686c69c3E5E4BE1014e8b5880ffD7BA8713dDa",
    "userId": "265134730"
  }
}