{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10",
    "entityType": "User",
    "nonce": "0x35446df5544ca4ddf2cd9e2b17896a3598a4e48ae5a7a31719f826f4fa30c4dc",
    "signature": "0xea9c30cd81031b1423cdf8c5fc96fe7e8437f1ed61ef9fa69e890ff08f5c132473d1d801d1acbbf9b19ba83433f3b2a49aa936f100b599a6c11124bdeada97f51b",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}