{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201891",
    "entityType": "User",
    "nonce": "0xb6cba34b2216686c1099cf16665e301179486f2813a47ab470fdc6a08b00364c",
    "signature": "0x451a4680c411e7c2390dd5ffb25ebb2d38a8ff475776809b4596418f4559d5356f42832657213ac9b7a93a561c8c4e5e4903418a62317ccb25aec53b161307a01c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}