{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99787",
    "entityType": "User",
    "nonce": "0x6da824087a86d50b016217374a9cfb8d8b80139e84b201edcea97c58a5f35d25",
    "signature": "0x4027af865f3b556ab308ee988a77a44318ecbfd92dc67388edabc83c19cdc58243ed8c0433ba8b747906da6a6c2d7ee8ccc7db8db7347c262ec27d800ce090fa1b",
    "signer": "0xd41d03fabc8A113A5e32266E5645Bff54f429099",
    "userId": "154510400"
  }
}