{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0fc11d4950754a2c9bca3ad5d73e96e50098eaa65218fa9390be42440c3eb2f3",
    "signature": "0xab8346b0d63bca34803d450645c6da7462c822a275df9f5572f864bd70fd368e6a8351df8c95116b1a0865fea5db714708dfe14b79fc5fecd2324a66c1c938db1b",
    "signer": "0x7A109d2c46B4B5fa3f75538461f1762847110050",
    "userId": "528922452"
  }
}