{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x398c4ade0337d12f51da16fb7dc6adc0faaac56a0b409a690787a0458f2814d9",
    "signature": "0x20c08b82ec9f2df084019d6a25ab1e5429ea40eacc15a3f9f6803e5015bedf7623a877c6088ea826691be3624011b0fc73ed7fd453476913435ab9ebb1f711861c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}