{
  "manageEntity": {
    "action": "Update",
    "entityId": "511721106",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb243b7e795ec1ba3b2368ddf342d4198b4d4c2e25e3925d7ab25e945cce43bc",
    "signature": "0xb58b9b9720e14dafb7e77a68a0ab6719ba6226f3c8c06cafd1fd43cbe621393829eab6b5078c059e43f21b513eed5bc3a2564d1d2919ec68fc7454df4f9579971c",
    "signer": "0x47dbED9A6aEEcAa660D5be033a565bd140969326",
    "userId": "511721106"
  }
}