{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113",
    "entityType": "User",
    "nonce": "0x244008519fbe442b50566a8257226b19c3683760e43e4452ecf45a38eb034d28",
    "signature": "0xe667f586e92ab5d8619c9caec38cdb7921b73e7a5c0b7d35dbfb85f36a64f22d661a43aa5270a47ba78399e929246dbaf058a6ddd814900947ff877270303d371c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}