{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x2908e0fd50ce5d0301d241d2a0dddb0751dd1615335b1982411b5add51a3e3c1",
    "signature": "0x9b38603227d3e74000d9995ca1388b82ab3835a74f60570a49bcdf558433284f7d19aaab9af598639c688e387540f146e9413f42cbed015bfcd0aa08cbeaef8c1c",
    "signer": "0xA49Ea05Fb50d75D15fFDC8Fd7e1567FAa66E8b3c",
    "userId": "406866433"
  }
}