{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "609847193",
    "entityType": "User",
    "nonce": "0xe13a10272b833bf2044fe0ebaf17ce12ef49bb04baed6339ce61b52fdf44e90e",
    "signature": "0xace8c0c37ce47c591e9f90e3454787d0803e4023fa72ddc87b681d53442b46382fc9afcc694cecbcbf346de4455e49babd932c545520c0bc332987a4784522bb1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}