{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x8428bab0e1c8957147a81c41abb0f67afe89d99cc128ffa22581df360453b542",
    "signature": "0xb4add7d3e6d95b7530618891ecba36b8f00a21dabab9b60f8ef97d9b036809060616c5fece6551399affd8b0afa508df94fd8cf9f0e5dfbdb23bef096dd4d18b1b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}