{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142952",
    "entityType": "User",
    "nonce": "0xbc8c7e04e849be1c3a2617d5ac46906758c2203c617dd259f0d998559f3ede03",
    "signature": "0xd67ac36609b9f7c56cffded88374334c403653559b351250a9fdd63493451c437cd73b953158e815e94fb0758e744a83e2150b7b1bcd04513315c1c49195fd101b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}