{
  "manageEntity": {
    "action": "Update",
    "entityId": "484547418",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x438bf1f2bb7a7b0ce51abca7595544c1b1ca45c4592c347e9ece251f94077240",
    "signature": "0xafe62e80e23b6f7700b585c2987e8ba85637cc7c527f4a5ad429ea06a736e9c7277d1c59bc3a26b5c740aebd1e5f2f6c192620422b018f63465d24995d2264ad1c",
    "signer": "0x7C0D1eE6a24EEA79b6F6164AE96c2030f3639549",
    "userId": "484547418"
  }
}