{
  "manageEntity": {
    "action": "Update",
    "entityId": "108484768",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4ngbs4jrlicp3bsbdvcavluucelqt7alrmvxnfgh2xezu2opropa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":929540238},{\"type\":\"playlist\",\"playlist_id\":1304614246},{\"type\":\"playlist\",\"playlist_id\":127240244},{\"type\":\"playlist\",\"playlist_id\":1857186147},{\"type\":\"playlist\",\"playlist_id\":773504733}]}}}",
    "nonce": "0x02c46d921725982b89a38232a577258b5d4fdfca00adadb45f46fe8b7571877a",
    "signature": "0xcd86c2cab416c5975a82ee6c349432936db333425182b868352cab7001dd88d70eb462e7c23498b5158faff8b0d6e9fa018c58b4613e32e8a4c22452826ceb141c",
    "signer": "0xd6D220ae89D451907B19B02B4E8eFbbc5a566f8b",
    "userId": "108484768"
  }
}