{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1722125",
    "entityType": "User",
    "nonce": "0x4a3c5942e0cff6d575dfe4232504578719318774225537c01f51becc3eaafa3c",
    "signature": "0x6ae1fbeff6a51dec57016428355348b783fa5ca81e89240cf066577ec55bcad30a561e55889555b22304df89939bc921a6afdf9cb86422165c895466cf4d34251b",
    "signer": "0x5Bc05b706D3864d34607f61EB1cb128EEf4453b8",
    "userId": "673773101"
  }
}