{
  "manageEntity": {
    "action": "Update",
    "entityId": "162770660",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraybzctf2li47i3v3mlkfl7l5nrezi62ucjwjxjqhwvvxzl4goit3q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1380462390},{\"type\":\"playlist\",\"playlist_id\":83227478}]}}}",
    "nonce": "0x4715744f8a05ae5c1ff58185e459a89beedb5bd1ba8ec437c487060e5038795d",
    "signature": "0x9409b9825c2954fdc25674b9ff4d96858e1561e4fef9db60ae9e0017b798742c38bbe335488745db5beeb337a184f3cec33ecbced4f48adedf489d7ee1fdc4d71c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}