{
  "manageEntity": {
    "action": "Update",
    "entityId": "607405162",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x85660a9a7be65a2814a5d645bd586180d51a36f7696d9db2e2b3c33533e06c26",
    "signature": "0x344710533fb4c72fda4e867f8e9e5e1aa34ee3802f0e8ff237e5af5756f7d7b645b94324fe91c17d8470761391d1eac240448a0f81c58093d990c0f60c9f41731b",
    "signer": "0xfd23694B370A14cF604001a6130dECcB83245cBf",
    "userId": "607405162"
  }
}