{
  "manageEntity": {
    "action": "Update",
    "entityId": "195545022",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc4d6ea81cd544653014cac80f7be3f03ee60804ac3888ebcb8e87e4a047b7de2",
    "signature": "0x8e661b2ae959b26d7a93acb58f54d6f517ba766a6af88b8f3ce4a24064b3065e592eff1c427b84b257d54a907375c3505a86e2ad0776b6ba5cf5c2f2e1295a501b",
    "signer": "0x78d65aFe46082ee73a9b9098e0146E88695A642D",
    "userId": "195545022"
  }
}