{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xd358d284704d66651db88d51eb22f9862a0c669e0f300699a253a84da8cbaa36",
    "signature": "0xee8c02ae8606e103834f877f384528441cc7c6bf34e4fe162c13194e4ff36aa87f6cb3bfa15707864a608059ea5d240a9905b663b3351c10684afbcc9b91710c1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}