{
  "manageEntity": {
    "action": "Update",
    "entityId": "545537105",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierauhcr3nvk3pkl5hqqvdddb2anq4hnk2spc7thgsn2a2hbwtaptlaa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1759831332},{\"type\":\"playlist\",\"playlist_id\":1717182722}]}}}",
    "nonce": "0xc69c64c2dea0b7868c20bb0ead5ea90ceb43a2b4020680dd2b59b6b9d8364941",
    "signature": "0xb6997843d8078cae6356a27f1c8c5ba0e684a9ae706c9ef012d7b4430219de92670912437b5f73c7a2b5adaee9ed8a3edbda328df422e9ea364c346010f569f41b",
    "signer": "0xB4a54F9B2a7959bD50C623E17c29991fa049790a",
    "userId": "545537105"
  }
}