{
  "manageEntity": {
    "action": "Update",
    "entityId": "460950914",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x53c10990e16a1780e23398fd9c293f7b8c884c5a6c914f98a4ebae3eab1f8e56",
    "signature": "0xd8d70592c47bb5db97b26f788c4a85f30f347d260339e8650e5ab0a67e57e0ae384c2ad69db701a81825d7851e16de1c78bc2de99ef561c7ebb06fae7a5630991b",
    "signer": "0xb6fe96Dcbf74a63fDC955C459d5011Ee0aeE1957",
    "userId": "460950914"
  }
}