{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964501885",
    "entityType": "User",
    "nonce": "0x76902272a04a4e18e6996423209b99b8a107d444bb36eae78cd787a6c44718ba",
    "signature": "0x338b42e4b2862ea0e03496a20d70673fd88511d38b42b05179ac0b608ddde66b7bbbad3beca84b628ede0e05868dfc9a9f4888291a0bd78a42ca2c52a0a664ba1c",
    "signer": "0x5e6d01F8B70091388F9Fc78aCe897341e3696c0f",
    "userId": "335869800"
  }
}