{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0xa2025056984af78a95a106b07ce597092a7a9722e0363df1eb56161bc294bd8d",
    "signature": "0xe7301abaabdd04126c5cd1c8465dae36849f562c61dc0b7292c738fdc139971655f8765bdf9d1c43a2ce1c8f862f2049c45eca273e981c6d83df338046ca80e31b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}