{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xe41158bae39b336b24e661588cb0177f76ff50997c7bf80158577ea33efa5a71",
    "signature": "0xb7cb1665cf6b22bf09a49fe626429076588b59536a29989e5c3d3ca47200032657e6d8af617dbb3f9a4b7eb94d363db7a47dbf79b931ef4d877976681ad543c61c",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}