{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x429c95addf2449a7540e1d37593d23ee3a932c2678f4e4594c211364c280ab10",
    "signature": "0xafd3ee0cd612d891d27aa24a83749a171f78a33125d40126b5b36834c749870b73d91ac7f3db05a30839ff4073b613ae88611e1c3ff77530c612e22de64c2e9d1c",
    "signer": "0x565C3EA1622dCCfD1923377061F4022FeCE6b427",
    "userId": "389557119"
  }
}