{
  "manageEntity": {
    "action": "Update",
    "entityId": "994758391",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x76f456bf2b22bd433427a2076fe8c09ff9e289cfedcc94c195f5f64d3795071e",
    "signature": "0x6516637c137259f3a61b35e180bf8094fe1ac6e7a6b6382d9f10a92fff414e6b24330cf48ba8333ab52e563e0418d05f35cc9fef2547f3c932891f4580fcdc0c1c",
    "signer": "0xdCAf5149A8084F2C1c72dE882740656EfA9715b4",
    "userId": "994758391"
  }
}