{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4188",
    "entityType": "User",
    "nonce": "0x50fe114e3c683928551b740ec2794eaeb1fe60c2a6b1b4990c2addf28b124325",
    "signature": "0x2eeca2211b5e39ec5fe399db5f1674437ce38c4fa8d1ba00c0087a06d59376d40c5d049c15d578b388f58d4683f0cd810e1e49fc1f8d92621b1327ef9eeb41f41b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}