{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105836",
    "entityType": "User",
    "nonce": "0xc0f45b1b47b2c3da36dbb622b85f7bfa34cc33d1eba59784dbe7640484ae4cfc",
    "signature": "0x482f4590736f20a339308c5662db6f69fbcdddec85a71843eb5408c414a919f53678a9db1b45cc6cccd55bca06b51e64f3c58cf37d8853e9be2e2efd00e3a7841c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}