{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd75465a273be8be1943113972b8dee6b7800b49330f481c658521e8236ba7350",
    "signature": "0x46d6ba7eb5b623bfb1953575bb4420e5520b76db2beec03e049030c3cdeefeac3a9de060a681e331dd1ecc18686ff0558e012931435fbc35ee93aeb8ade2a9201b",
    "signer": "0xBDB0D4b954b76aa82E858272129d43b54aa159f2",
    "userId": "745218801"
  }
}