{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "978785085",
    "entityType": "User",
    "nonce": "0xcc113efa4c16d504eb35efa0550ea5175a90ece0f28e42c618d75462e02c3544",
    "signature": "0x2a359344fc12532dd517e24d02186fd5d2fec5ff60d3f80606da2fd8e9360b6869af6121f0518ca554453745a48b2d9b80a946b55b65008e6db860032fc080451b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}