{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x6e90b3925ffd9dc66ab20e6313c594cc38eb9c13a8107ad5a3baba39a6c73bc3",
    "signature": "0x0e2c546216f012a10ea8ebf6b86879dd17ad34089b99190151fa9a1807747dc65aee082f3f3762f7b6a4a3f96dbc3fe0ac114ed2336e67bad6ed8f6c4668419e1b",
    "signer": "0x49AAe7F19C6F36Ad6A28BbD81d50c5B9605bD230",
    "userId": "402520233"
  }
}