{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb41f497d9bfa9ecdea98bf9f4443d9895d778dedc5a5827b969ab02b9057ec6c",
    "signature": "0x985f2d3dc398d934ae5383b495b511b1930ec29d0fdc470885392975a7e68b72157162363376cb20310a6c1a3c12fd5be6ca8075d1689094e8af8ed9aa838d6a1b",
    "signer": "0xf0363d75BCaDb7C724ba62e767EAeb6caA5281D3",
    "userId": "120813031"
  }
}