{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xdc0a013759d9de59f5e8706120eb6f5457062784360f4086985d03f0340945ec",
    "signature": "0x25d810725e50e30ad0595738ab915883fd6872996f4207eedc614e50a23ca2264898973da0c467a8b310ee983ee005517cd3100ccc0bab5ab9bc6e04188247cd1b",
    "signer": "0x17141572B0250E4291cd034d4C034793AdD4876c",
    "userId": "777872195"
  }
}