{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44",
    "entityType": "User",
    "nonce": "0x1e13ba0ad57c28e1926799e829acab9c5add70b87ca7da885e256b731164bd3a",
    "signature": "0xc656187415138d439c0dd29e319c8c8c633f8833884c285f4f5f3db442600ce915a96b8c1b14bad57570f1e31eb0328ab56c6a5b5fd4664227124610fcd5ae711c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}