{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xa1fd6b191b3f79d7dab8564f64aeb076f3c7050f8ed93a5b70fdf1fa0cd0e0ed",
    "signature": "0x8b8bd0b4151ec6caf9477e44a269ced46d9ac2de89808c2690e0672cc89a30361263b767f328a722a5afd9058de0d5553e0e07d84bbb3964596d594e7d765cab1b",
    "signer": "0x0fd7D56eC9517Ace401083F2C8A4e671aAD50bd8",
    "userId": "549022539"
  }
}