{
  "manageEntity": {
    "action": "Update",
    "entityId": "429311703",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc441446e37f75b91eba69d22cce62da2befd21a0a77494e10bb704de024e54f4",
    "signature": "0x5cb9488b8c7fb682596ad4f4e4b0156c4f93384a860a11e5631b1ff893709e407aaaef4cdd8cc288333615f41c8bd48757096edb3a49016fc4cb08f3b17529bc1b",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}