{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99787",
    "entityType": "User",
    "nonce": "0xc9ad868ba351851dbfb7e1bb0ef295a55e07064cd41fbcc03030bbe6f3173c7f",
    "signature": "0xf59e2293a745f4430f1dc5ff34df272ca06d67086e74f9e33f6ee125f76ccbc15baac5c2126df35104cac9a55fa666d0c94a03bdb5f1adb833b8640cf4cb37b71b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}