{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1468629",
    "entityType": "User",
    "nonce": "0x200f93e10375315a04e5c296530c9e5de3648171c40102af1141363f4cd54f49",
    "signature": "0x9f919047c4f5cff893e4da6f25f27b11edb89f59a4cb0476970540f9f6b8153b76242081b3fda96022c3ba10b3561e8891437216817e933b16599dc52aa026991b",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}