{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x3361eb13b96969519074c16f07d67f01dd99a72284ecb8cf02f884caeea1f030",
    "signature": "0xe03671ec279560b66e4c22649dc8e685430ed29f49f897bf6afade09ec1a6a465fe9c44269a2c2fa8f88c4ed0ce8f7a27e4be84d6d9531ac8f059b34d54c1b961c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}