{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa86403af27fa248f6bbd61937ebd97c5496abbbd0184d497bfebe012661ae584",
    "signature": "0xe1b663c3a23989a4857156a6831f1a0199c3933573a843e4d1e83c5fa6f586753fd94172bd617ce40a66a480437eb2617ed4d5e89d83b4700e8c6058f97b3d531c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}