{
  "manageEntity": {
    "action": "Update",
    "entityId": "429081221",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa397c70e4495ab782d5cb4e3f0e1ecca68dff8583b730a46510a2936a6393aa4",
    "signature": "0xb5a567c92087595f0ddf96c5477db83bf9127079bcaf8110ad2351226100727b5392eae6562c9f13b27796dd31f506892b16055bf607474d6b24a9b90888ccb91b",
    "signer": "0x3A9bD85F5379a7f7B599d40E92690178652B8f3d",
    "userId": "429081221"
  }
}