{
  "manageEntity": {
    "action": "Update",
    "entityId": "872808777",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraze2mow6gomlvtbavnkhflmoh6i3wgv42qvwu3g2pxft3aadmvvzq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":670838926},{\"type\":\"playlist\",\"playlist_id\":838580234},{\"type\":\"playlist\",\"playlist_id\":93290383}]}}}",
    "nonce": "0x5c6cf50fe938dba7ddc55757fada46204afebad4511968e7974b87cd6f056486",
    "signature": "0x0c8acdc3f424ce1580cb5fb38d7ae93df7f354e09de5004a6485d60663495e591a0f70a9e942f8a28b9fb0828330dd8cd3990c25fb9b40e8df74e456bc151a7d1b",
    "signer": "0xa00cA07D6428495DE7A2962e7C753A6C70f87b7f",
    "userId": "872808777"
  }
}