{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6dad648b962b6b6d76d32a37c785b40ee2fb2118b2f50ccad4ef6e65a6846aa2",
    "signature": "0x8b72d710fd1298fd021b0fb1a92c885e1b924c5cfd604e5403e41d209b1d178355ef0f111e924aa0f57cef0f20d8be43d7b7ca6366f70ecb63168d249e6200e41b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}