{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310796",
    "entityType": "User",
    "nonce": "0x0fe54b5da5fee91a368fc02500057547db00f2dfa18b24857fa4097893c47f63",
    "signature": "0x1809642744dc192d61eb8fd57a8c28d32b655af851fce48f36ad299fb889de3752a199de39e2878bc68d8677537d792ee192b97a280091d1cc26b3d732a8c5d41c",
    "signer": "0xB8bF557DC997cD9e10AF5CcDddf0D851f201Cd90",
    "userId": "806523887"
  }
}