{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x7eb5fd57921470bc8c44dd0a0af1c7ffeabfa3aa3e4efbda3c47267d24d39dc0",
    "signature": "0xa099d66e184820bff705ca222b6a87bf2e85fc13d8362d1f8f8ca86b3155d502331c9fa091d1e88745cee0fa379dc692ed9522cba351d789bdc4fb7d907477cb1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}