{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0xb62ad3b614d38afac3770d9bf5fe63e4d0bb8097d7de8033a9785b657d28f7c4",
    "signature": "0xae38d6b0f41300c4d33aeeba7fab6c2a51304d8acb219b53c970c46cddd15d246e85d10140351d6da396ac6dcf9414d5799774902f77d557c7f401f40ca9784a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}