{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x9f3d161e5b314ee8370250e800d4d020b7ea44ac981cf47d046f619517319a97",
    "signature": "0x17f2c014d23c9b88da296f8e8fbde1e9d16ad4a62b4384589dfd74503d04cacf16c72da6f9b5575493de9de26d84ee1e1d9f7ad4e300f820639342aa757708be1b",
    "signer": "0x0A6CB80dD410547296a7c2262d3e7536654C7880",
    "userId": "644719910"
  }
}