{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3c40ff252c2c8dbd30180ab193178900d777fc49ca81b4612ed719562baab41f",
    "signature": "0xa29eb9b4f297eed8628f692415875afd351fa7690b18fa89c23081b44d2b6c93502c90db73957869963da549669edc157b4000aaa3548f198207b359a7c415291c",
    "signer": "0x8f77F7FE2165fBa864E751474Ad844d93fAAFaD7",
    "userId": "265585009"
  }
}