{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945818227",
    "entityType": "User",
    "nonce": "0x6b81eba5f8d35fb00960707728ad551455322bf2115d3557d0bec76fd1ebca84",
    "signature": "0x305e17cc3529763db8dfe571338764c0a4793c53eba946bfa3d14b88ee11a54a3c4f51c9948097bfa8564bb143cc787c07a5505b890aa21079c7894add67ac941c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}