{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680645058",
    "entityType": "User",
    "nonce": "0xde93fd4974dfd99d6acd64dc16a5d1ae850aff35d41e3ec8f5977c348d9147ed",
    "signature": "0x69845c220f0c065cbc4d0600798e9fb1bb55b9ed0beab84239acb2c4cab79f35243c158744768386ea6332e95918e7dbd4cbe61b5ec0d11d8ea4d476cb209d8f1c",
    "signer": "0x69DAeaBa091F0b0C82B0f54E9a01853b9fB11369",
    "userId": "306102391"
  }
}