{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xc8ee6e0c89e4d5c1d773340dae696b9fe4ca798650bf0be973cd033a3f21f707",
    "signature": "0x0fcd40c286a9b5deb21a8a7f3b1c2ad2672675beaef9d554ca9af9850da99414729a2ffe8b1e5db6e595ae73e9f622767ff03aca42fa8f2ca7205639627d69ed1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}