{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991877005",
    "entityType": "User",
    "nonce": "0x8ec3e00d9ea670c5f59f134e91a271bc899260bc4d8f81b09d38ce423d4226f3",
    "signature": "0xca004cc77521433cb771c7ac2cfef8f411058a676e004089ffbd33b2672210b252edb58efa7bf395e62822133008d4c0d7b59de12c735bcb44723af4d5746b9c1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}