{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0xd174cb97197222d8ddf1b695052b4b31a8376de43378b4aecb4f584f5c1a01df",
    "signature": "0x8310ab81e39f7495f3c285ec40085ca30337918c69dda8f1b6a11d592485b22d027693cdd2b427b02cad77fa44b6d7da31eac831036eb5342e2b415d60ed23621b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}