{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174894112",
    "entityType": "User",
    "nonce": "0xcd39da85f7ac52ffed52b4fb9a2ad836f54ba461f561046a816695591ad49eee",
    "signature": "0x8d277d3ddee203837ef454b83df589387d30ff080917b040921d1b2c6e0794fa0278c572326cbca965c61682e26441afd6c0a75ee80d346b2a5b7e4e6f65c1dc1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}