{
  "manageEntity": {
    "action": "Update",
    "entityId": "959617631",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x841c30fd1d1dd5d2cd831083419d47a54f37e2819d746064dc44b224fe0b1b1d",
    "signature": "0xf736149b4e9eabee0343fa1772a9f6b8391423f19f67424855aabcc77f8848f208064740157dbf1f52478d1d5fcb8724bf0db974737cc7dedc1002fb5a4ec10b1c",
    "signer": "0x88DE6E278423E69808AB03c717d8847C333CD1B6",
    "userId": "959617631"
  }
}