{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xab9d4058f93a979d18d413caa3ad642ca64056caf0d24d7762dfc7afec5cafa3",
    "signature": "0xae9cd83800f75e09b1057e1086c8b053c0143e61de928f4fa724685f3cf9c3a776bd71c0a85cfa813167e202fa9cb251e42c25fe8674d92c48afc752a9cea72a1b",
    "signer": "0xA8080284650383362D5E40cB0ABB6C4899eECDA5",
    "userId": "564474196"
  }
}