curl --request GET \
  --url https://sandbox.api.byzantine.fi/v1/webhooks/subscriptions \
  --header 'X-Pubkey: <x-pubkey>' \
  --header 'X-Pubkey, X-Timestamp, X-Signature: <api-key>' \
  --header 'X-Signature: <x-signature>' \
  --header 'X-Timestamp: <x-timestamp>'

{
  "subscriptions": [
    {
      "subscription": {
        "id": "550e8400-e29b-41d4-a716-446655440000",
        "integratorId": "550e8400-e29b-41d4-a716-446655440000",
        "url": "<string>",
        "enabled": true,
        "eventTypes": "<unknown>",
        "endpointSafetyMetadata": "<unknown>",
        "createdAt": "2023-11-07T05:31:56Z",
        "updatedAt": "2023-11-07T05:31:56Z",
        "activeSigningKeyId": "550e8400-e29b-41d4-a716-446655440000"
      },
      "publicKey": "<string>",
      "algorithm": "<string>"
    }
  ]
}