{
  "manageEntity": {
    "action": "Update",
    "entityId": "349545944",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd1229b24a1d2543fcf245edd94913189471aa221a891042cdbd1b3ae3c3fb648",
    "signature": "0x62af481d6614a2229ec9af0f203ef733944fa50dc8993732360fcd8cc19a2b3f6444f0446bdc90ef3045bb9eb0a13cc7ab1d9c3db0f5751038cfdd11331e5f951c",
    "signer": "0x06B5AaCDC608a6eb851197ec545493a7F4A54815",
    "userId": "349545944"
  }
}