{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10449019",
    "entityType": "User",
    "nonce": "0x722169645fabfccbe5a72d12534ae9afd8d33757659af3130b570904305eba0b",
    "signature": "0x7719916bf96078c18e528fbe28c6e7f474c20b2c06e38fc8ea99d2697f73bc750dfc7a50316e2f3ebb231706bd624d5f15401582e761764dd108e2ddef58ebf91b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}