{
  "manageEntity": {
    "action": "Update",
    "entityId": "579040376",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4be4dd169be86162af60453cb81ad43f6cdedebd9058a9dc31dd94af4b070955",
    "signature": "0xe5def5200be7b9bf8762cc2d49414f47279e20d4294782dafb84613bb28ef24f272aa3a57fc0e7d8226a3f586dbaea4607f702d0e5491807274cd7572bca06f11b",
    "signer": "0xbe7E1709617aF8d5dE7f13dF1dc5343CC5b6C77E",
    "userId": "579040376"
  }
}