{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136340",
    "entityType": "User",
    "nonce": "0x1528a88ec5396b90f371b8a7a2986a458571ef84c557fe7ee3cdae871d2f3d39",
    "signature": "0x5e14472aaf6cb53610b4f7c811198af62973cd29adf3a2987020dfed023e7b046cd6d9ed8e127ff68f2e7596d9d55b836272fa70481f36a4c56452989a5b00f11b",
    "signer": "0xa6030211678990225Ac0a6a2862549d825e7A039",
    "userId": "543439291"
  }
}