{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296063718",
    "entityType": "User",
    "nonce": "0x7e1471c74c3a4eb36a3edda1f7b02e12db5a2c715819beb2ee7bae29fc13ae3c",
    "signature": "0x4f77c6b9b6d241f4268fb98a39778df9194a03bbafbd31ed8f1ac386a71514ff37d506bc5931458419f58f4069ccb30a721d9ba8e381bd9765e3de6db553063d1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}