{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7d2f2330979abc7061030cdc7a6b809641a251019c5700d620e395332c8b350a",
    "signature": "0x39e8fc73c86db12262ed6f6fbfc4064eca35cc53fdfda70f33277989cad2a06d395d05a769a546cc7d3f19c09719aeeeb165d55310f74606aec71cd3c5a555ca1b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}