{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54041",
    "entityType": "User",
    "nonce": "0xc72babdf12fad0188ccf2db5335463b4ac2596283c508ef541faa942174fba3c",
    "signature": "0x7b3c19515161251621dc9f532f8708b75340896bb22e0eb4306aee83fe8c9f134ba43b2a6f365e73ba5dcdee61b528a403b3aa59c203ba0c68cf550329b9d47c1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}