{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183245",
    "entityType": "User",
    "nonce": "0xf61daddb39fc652f70d1ab9322abfe8b8412795dd85653cdbf90e6aa35b63607",
    "signature": "0x758930f4d787b92315a2be471648c8936f9a8b2b5ddc70ac1b4d2105926425e062f73e8666d31d78ea45004c0aaf139f69d69b606b994ea5b8b3bfc60e7ce80b1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}