{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x5b2b8530a44c74fabf3d5b7cbb0000d41db6fb9272dea73ebad48bce9180658e",
    "signature": "0x5966be4991215ffae80bc6753158c781d58cd32244a676f0e73182a51b5e56667630d5c5dc98836248d2c860ac9713dd8c7a79fea4f8c368fe21be3637aafc961b",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}