{
  "manageEntity": {
    "action": "Update",
    "entityId": "436935370",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8cf480c4e3cf4f384455cda26859d9e22fe100959def99f0ad9be83d93330ec9",
    "signature": "0x4e1a112e6c6acc1cefa9885dc018f584778141578736fc37b48cabe23d942918294e34fa9db119f81c932e89ed26c390c213f2bf1ff3ee5e279ab943e29ac2b11b",
    "signer": "0x9abB026200c8789A63bEe1891f6C41B319e94634",
    "userId": "436935370"
  }
}