{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239519",
    "entityType": "User",
    "nonce": "0xb3ecc2f60b1aa08c8153c060e048204f20364254ae95e183fb5be48a65646f50",
    "signature": "0x03aa4f860714e8eb30c9090f1cf7695bec5ec0c109e0eb76141026bb7a656318363e141a54eb8683eea93f0640efb2eaa4455cbe40b54b2c615f64b1f814d0731c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}