{
  "manageEntity": {
    "action": "Update",
    "entityId": "828117089",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf1d9ecef2367224c762b8d480dd7f1cc3f2219c552a868dbd7a385453029b58f",
    "signature": "0x582c7eb129cead4df820da2955eaf673008d2d94f0a748929b0ab44f0715f66f1ab93798c14d72fd86fc73e6e9852a403b8e3edeb234a308aa0eef173e34aff61c",
    "signer": "0x78C0d0ce5517198B2992bBfe288BC9D6B6696526",
    "userId": "828117089"
  }
}