{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0x38a0469c5c350b0509afd9d58b236e15695f5f40a4da6cc6644d702b99316ad1",
    "signature": "0x7f5e02cdf928cbbfd613b92ed1dd345a0c0c831b46588ed5cf37b5f3842dc94b7928a7fc32615311b24582b17df1f835ebbe9fddb0991c4f052e6aa35df4e9261b",
    "signer": "0x294F540CE80e30CBc9Fb7bEA94F956ABdEcdEf68",
    "userId": "809640913"
  }
}