{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x048ae1090a4ff87a97e6a3a70b75c78132190224c6538d74d4ff30c4a1590fac",
    "signature": "0x5ebd9b77c0a6b0f35fa203acf9f36bc25a49294831afe8cabe699235cad0d44039ba99475e8cd3c13df9c3de7fd64957bd94e1360377112e060e6f185205ad4e1c",
    "signer": "0x962AF2A26d37380825711fED9E6c8e5780A24650",
    "userId": "341890729"
  }
}