{
  "manageEntity": {
    "action": "Update",
    "entityId": "1644335",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraowore3d3foxnzehguyi5m6u7i7rzjqpjdjp5zyjsnnqjt7aqfdha\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":131374},{\"type\":\"playlist\",\"playlist_id\":1525224740},{\"type\":\"playlist\",\"playlist_id\":1124355508}]}}}",
    "nonce": "0x290214850b0066ca1f65b1471379fd5a73f4bf2e6eb76b58e7546bfc2aa77838",
    "signature": "0x035e00171955486f5f6640c3ad27e66ac8909cab6f29d3cd5beb51e9f84897393dc822981f43fc38d9a558a20ee4234866f62b65cf4f77a7fb2ade4c2a66473d1c",
    "signer": "0x154e2dC397c7Ac1AAB6b620b7D07e30563Cc2Da1",
    "userId": "1644335"
  }
}