{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb04a4e8adb8dfdabc9fb441ff5f7380cb5cd181826109d01e4ca5e64aa643377",
    "signature": "0xa8284ebaad29ced3d43abd7d67639923297553291fb352fa3e2b14f764474c097e4dbd35b6e13c92599add23402510226094932c9306a75925913e0c1b9cbf591b",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}