{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x040309bea885d237e1825188d054d5377fea0175952f4dacb47e35f71140eee7",
    "signature": "0x9f897a1466f81fd9a6cbcb203c111fe93258f4e506c9d4f3b72f9da5091e8d8e19217bc3a983f11bf0d4e0b16ecb8f6f96503b2285fc4a444fac1feef16377d91b",
    "signer": "0xc3cd8d00194d20Fc35704508Bbe2386080a86aE4",
    "userId": "296089857"
  }
}