{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100469",
    "entityType": "User",
    "nonce": "0xef21fc146c2fbec14bf8ca13928c4d12bcedb09abf67e709d43ed8fb98b2a309",
    "signature": "0x216f1090924e70fc8b8cd3e4bb55ece77c52b438d7344beb40265c607860ac7c61241cb1af9b9817892530a6f1635f9c3aa3262490f546f9a6f2b31d772d2f091b",
    "signer": "0x8ED8606Ab8cF49801aEa2bf8fFD349E9c85bC6a0",
    "userId": "464330844"
  }
}