{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x779ea13d58e45cfb608e750285c4c64cd3f64af7ffa96f5b2bf0dcdfbbb3af13",
    "signature": "0x3f60c303d02ee15cbe35eb8563ce559c2baa659b1544292c6e8eabc7d6f6c502601d9bc6fe2fe13fcbcce4bc910eabec63cb7c6548b04e5ad9eefe27763517541c",
    "signer": "0x595bDD2E3786fb0D66fc6822871d5F62A3f20d14",
    "userId": "539330245"
  }
}