{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18932",
    "entityType": "User",
    "nonce": "0x6f41f18ad48d2af122813c63a68a6a37f190688e3328dfe02e2bdde57769b62a",
    "signature": "0xe2f7670083e65b2d520d054dc0c3098166cc74854d3ae6a6a09760f681af16420189ccb571fb94b8cf5a28277a700ef27a992bbded4e623a4eab523939e9fdd21b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}