{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875797218",
    "entityType": "User",
    "nonce": "0x24acbf88a089ee639bfa51254fca0ca21edf071e0ad35ba273368db6713498a4",
    "signature": "0x6e2271ca27eb648f450576bc6cc1eca86ffb8923be2ff53136afe40cebc8ed977807ce9eb955a50806856634a0e2f9863108f1dd87162ea7b8916eb8b146f2dd1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}