{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5392",
    "entityType": "User",
    "nonce": "0xc8a40543e1e7652da47bb7eede6b78d41cff412c7f624d893c3214ed001b1d30",
    "signature": "0x6298eb2d5a8d6b4f14f87f6955a7843964275f067b0b9c1d8f734b44fa2a876769120a4be8187f4f3e4f4d15df683fbf2a1b2d702124d7f2455837ebdddf05e61b",
    "signer": "0x3776E1D82Ebf03656FA9D03C18fd5B58D7Ddd337",
    "userId": "83331354"
  }
}