{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617992566",
    "entityType": "User",
    "nonce": "0x6d003abe862baca9defe133ff4e96a859a5364952a84a146b755540586ebb875",
    "signature": "0xcdf25ebfc9f31f9292d3e6d73d3e414dfa085989acd34dc32ee33ce371d11fa81dcafbf6e6f473f36d5873aeea0cf98853502a105459f6341b5187ec04a7f2cc1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}