{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27447",
    "entityType": "User",
    "nonce": "0xc19ae301dfc46f47272016c72fe53b1d38aa1959c0e7f13861c6582b8c193550",
    "signature": "0x7cb88fb9f44efec691a480b8b14ceee55735563b5c6eab5e7f4de87e5346be9646021105964a6c90eb23ccb54076bb6a0973cdd42f713267f9cf0a27f7e6f3751b",
    "signer": "0xB1bdf4a1F5A8736A37D699426bA7dDe0aCDcdB58",
    "userId": "753535412"
  }
}