{
  "manageEntity": {
    "action": "Update",
    "entityId": "942338009",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb044d4b44a7a7fe7f1a05de897136bf8e06e071cf0671629a03d8469139be33e",
    "signature": "0x2771ce3d21a4f7b3382e34c8ccd3f63b94f18dd4905eaf1e94fbec4682c6a7bb25b55647491ad8c552e8e2e9629949cc8115558d50d6d00e82992203414cbaf31c",
    "signer": "0x018685A8F9C9a99819C0bd677F6B63d6C6d81334",
    "userId": "942338009"
  }
}