{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680517375",
    "entityType": "User",
    "nonce": "0x2933bab75e85d698568bd7a0d6a92ad0c5bcb4792db3f14874a5444dee90e1a0",
    "signature": "0x35fb5da46a68b45cf8c27fb19189a73cedde160ca50bd350c1f74027be4e3cc362ebadb70dd8e2d358b257c446f6164b90c798e749d3fe37bb369f2eea0eb7f21c",
    "signer": "0x473784A6Db124b95de277d9A2527561BA95e7133",
    "userId": "957849040"
  }
}