{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda71236a2eb2c701ca4f416414c3da51f46b8d437c7e7104db053553ab8d3b3e",
    "signature": "0xa17271271dec56c4d5cba5a12c5be1c9bb14054636c738f63aad20631c6840bc1b421dc8f8e8e734c1a5842d6a0364c0f3de326fde37f4aeaf4e5feb8c3a0dcd1b",
    "signer": "0x5F930F595D05a154b708e397C6dDb5ddC492A2Db",
    "userId": "224077964"
  }
}