{
  "manageEntity": {
    "action": "Update",
    "entityId": "633246973",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x31232c60354c928afe8bf8896ff7b7159b610a6f09ef3020bf63e6c752eccaf2",
    "signature": "0x59923a2fff0b6c804e94349ca0509a97544dcb685726e0c82a81cf6b28985c6f61ab950a720109a97e059b789bbfffb689ecd8675b09e29d480bd6b7406d89671b",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}