{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1690225",
    "entityType": "User",
    "nonce": "0x45353bc48805add18ad5587e02fea8a278652ab66a7efe72f020a3f111098e3c",
    "signature": "0xa6b4bf5d293b734126ebed1d373cb7f625647415f40421a1bcac238b5c46b0a5601eb261e742b627d84feae7f8ccd45825ccccbee78b5e85f3726d3f81c5fe661b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}