{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387292369",
    "entityType": "User",
    "nonce": "0x00dd021fc68dfff8631774a3d290d98b1212da6eee9d3f8a52d04f4793c88ac8",
    "signature": "0x44b7222f4db202ec518570ccecc6d5c887ccb990beb13cb329d0035c4f592e3c53edd980de2f802c5da15ed1d67d44b613b2b8048167b4cd606650b3af2b52301c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}