{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171879",
    "entityType": "User",
    "nonce": "0xdfa74188296f6be441212f3abefb7a5c86c2d0de9b51e08257567a89fb9c51df",
    "signature": "0xed5ad4667b93f76da782f218748eb0117acc880726ec09a285ba1f1aac3ca27f59df168dfc5dbd9b8780848133f86d3fe4eb8e521ee046cac01e9df0ac76e2dd1c",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}