{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcaefabd119c6b3facf25252ffa614034e1bebe8929cb16e9da49dcd3a22e8ff8",
    "signature": "0x90c79c3c9cd333423cb84df016124357ff9d4108f40d528031bdcb05812e371579f16e90435b6b572697d9f9f58317f9572fedf0e5fb1a8fa531887fac055ffc1b",
    "signer": "0xb98ef2f3573a0B0E83004f1C3b8B2288EAE90B8F",
    "userId": "831561034"
  }
}