{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203043806",
    "entityType": "User",
    "nonce": "0x885c5e20769ec44f5f93803a0a05a7495b04947c500082e0920806b67c16fb02",
    "signature": "0xfa126e18262cdce17b0546e912c4d09aaf2344354a4dae9f708baf0304a0d5ab7e541570c2c4bbc7f5fccceffa137bc505a0c175a71ca61642c8e4faa37c4e7b1c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}