{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x1586518c13c72905608e35e3559cfe9db60a07a761ca0e55edb64a230b986eac",
    "signature": "0xe151337e554db85e06203129952f5c028933489e816ec01d4d7d6d77be1ccead61f062fc7ddcdbbfa77bd2aa4a8607231f7248bb9e4ee6769800492bcad3269a1c",
    "signer": "0xe56da5Fb5AAF30449E9e91827cc7A25B4EA876C0",
    "userId": "399987850"
  }
}