{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "452785",
    "entityType": "User",
    "nonce": "0x97006f9539564b1ebc2bbae155b26912b1faca3e1e09ada0c95ac3ad1a599f17",
    "signature": "0xc5197c8b30d86d96d4bfbc13aa21be823dd713c27f0ffa7c9ce8c4e43327c13102449ace3a902a20664b420a754dc701ec0333404e8979139243357347c8e9d71b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}