{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73258",
    "entityType": "User",
    "nonce": "0x0bd491d262628f629fec83fa2022a746ed2de6c1e63011c8bc0a49db9c279966",
    "signature": "0x51c1249e5aca2e8c32d3fdddff55935cd558cdfc7efaccbba8e2387383cbfcc943b23ef23540e4782ee30fa4e0b9f238d9ced9a3406599fbc0af43f8098c49c61c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}