{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328011",
    "entityType": "User",
    "nonce": "0xd3b1cdc1c8da5c2cd18b2d3481670e0ebb6aa234f43a396c0ff342368a903805",
    "signature": "0x094bf7b144734987c90063e9baf310a402418d8c368dc01bd7fef817a3ee5b364d755f9145b9bbdd3fb8ff3478812e5cf1d8b657280e3e8908cda6dfd1ff34401b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}