{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147909",
    "entityType": "User",
    "nonce": "0x1fe65e8d0c4646cb043e6804527cf52a04a3b51b3c7cd09511ea5a5d3371a169",
    "signature": "0x6d1d4bfbe5bd8c4273b47e5e6d8bb90b8e9ea0a72f97bc93098f26af01c009553afb47d960000649e0cf9dcecb941ba567e2bf44ac0a5248190f527f5e2a6e1a1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "175162"
  }
}