{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951995708",
    "entityType": "User",
    "nonce": "0x1a8f6f9d580cd497ded4e081a63d999a9a0a842ffa6446d5498b919e5a8bad1e",
    "signature": "0x539c07595a69c175fb99d04f964610cda670ad897e9a4941610d1319ff658c5621b1dd0d15c8221cb56e0af13eb922981ef11c25a40fd78dadf29015d993b6461b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}