{
  "manageEntity": {
    "action": "Update",
    "entityId": "469362126",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6a1f4bd31128cdfe2fd4f31c241deeceef5f3c29d6a6d4254d73a9fc9b571683",
    "signature": "0x827c826f4d4f2909d06ec6b91d0ee62ae04db5f3cae740c874aba606cf5fa7c938da15ec6e880f095f7deec2ad150aeb1114da6882c05d76e21a757ee2ef78db1c",
    "signer": "0x5f3852d015B3133B018eC7fc4a78D57d179a01FB",
    "userId": "469362126"
  }
}