{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x5c6f795be6ea9c1f82deacaa83d35b47bbe123bff884176ec96682812f4ff635",
    "signature": "0xc39e6a3beabe0af76ac74b5aac4279f2d3ecc05fcac595d58292bcad48e5d8103ca56e735cf701d177a159de3c5b1fb3a4b979787f0a004a921ff0e11416b8571b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}