{
  "manageEntity": {
    "action": "Update",
    "entityId": "423712211",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb100a6765fd8aaba15ef04c1464abd4cfe16074387690ffdf99688cfa54f78d",
    "signature": "0xd2a7fb55765c64ad6a51749ca88881e8caee6a5cd069a47ac9a81986d9e1b92655ceda4b04de07a802c6dcf9b40ce030effbfcdeaa761455f68e81961fa89ab41c",
    "signer": "0x0F5E20DcC1F197d06b24ebF218eaA644767E87c0",
    "userId": "423712211"
  }
}