{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "238180",
    "entityType": "User",
    "nonce": "0x171af6b9026f0e28a266fc26d5546f968b7bd806f28013651408e2fa96cf87eb",
    "signature": "0xfbb74141a8d1bf736bfa84531464fb231f4e7e4f79169a9a06e9915d4ed7266f3c3cf73ee089ffca69a6dbf6a61c7524f27746d130f931a98bf0a5f746c99a061b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}