{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396",
    "entityType": "User",
    "nonce": "0x42909c8607dd9b350d8519c63a9df7cf350787c907185475ab64bf64945c5c06",
    "signature": "0x75405369939a2a4ec3cca877dce13592cf6e619a44a0e4f5b131f991ca9bdfa308251afce38d27e2e78bdeffa287e8cb14be38ab14b95e36d6d42511b85ffc1f1b",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}