{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306425",
    "entityType": "User",
    "nonce": "0x6841258222bf3325fe077f7822efbb4d64ab611fc29e5f39a9522cae245774e6",
    "signature": "0xb788b3f13f4ebae57ff699fadc215ba3db2a746f4455fecc690fd1b537475c3e0542123bc178560fab0da0c9aa8932d2d9ff317d1093dd23edc972615a1e98c11c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}