{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "417256310",
    "entityType": "User",
    "nonce": "0x3cd4cec8b277ba447f603abba4b271f86726befc04fd2a57eac91bd29f1842f6",
    "signature": "0xce44a8f05b7f8513ab4cd2f3fde6be8e9b0e357ebbd5a7821f1c9eb25bb24c924cead5bb4b694d66ec0773e9fbd6fce5cc611843472bfb3151082797aa0d2dc91b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}