{
  "manageEntity": {
    "action": "Update",
    "entityId": "922728721",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0565476eb18ea2bd5966d47b27b8dfd336afa2898586df9850648957cbacbc02",
    "signature": "0x837be99677b7a43a261440cf00fc260f06381531ebf26afc8bef2dbc56f7a9b30c379b2710535b13251453ae39b6f0c310c74d0f9a3f229ddb5ca9c7e6796ccc1c",
    "signer": "0x1d3665a84dDa6cd4eA57d9b66E68602902cc0365",
    "userId": "922728721"
  }
}