{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcdd53b939a46680fe72a19ade655661b5218e48afe2b2d95298923e62d7d9620",
    "signature": "0x1a427174f29dca884575f433869bca4ded794a686dd49dcbc81a0441af80f1ad1dbaa010ff1fd2acd903e57c6af75db469c14dd9b47c489185f7b07c52a893a81c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}