{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237640",
    "entityType": "User",
    "nonce": "0xb28b4187332e6fd8237225040449b896507f24e7b773921b7654a868b5697d56",
    "signature": "0x20ee8602399f1eba67396105758f896e41e717303b956316d74b1fea7eba9e515b98c70315170d01926c4308444034fc7a539e85eb309918c4bf16e6a9ea12da1b",
    "signer": "0x2fff7071097d912DEaB17B33e448D7280cEe0723",
    "userId": "655790469"
  }
}