{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x4d20eae31f8ee7a1cb4881a80ae03c68fae8eb2023aa647a72fe6d3efe1baa3c",
    "signature": "0x92c2af82775ae9b024461ab6f7746e5ed490e2f1b6bb02957fbc3bf717e57f7b093cf45a671764caf566f3397ee4560ad9993f4c61b016cd076541d2d8b81aa01c",
    "signer": "0xf4932982eB30F083aAeE8850Fe5d411b7A5Df5a5",
    "userId": "746635137"
  }
}