{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0xa975799b6b9c35359c61db6538085c6dc0aaf9829ff6d62728a2208601bd79fa",
    "signature": "0x7bb359187995c446f2efb9358d9a62043953b188ffe9bac9c7fa9416ffa2786330f8824c24669fbfd4f62c318a8d7f99a808c0faeed15b4e05dc10b9c72bd9ba1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}