{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81491",
    "entityType": "User",
    "nonce": "0xb8db3c8484c4ccfcd0f698c96c327a283184bcbeaea2886a566191e7ae01ee2c",
    "signature": "0x9e3247c09b18e9276a85623f46b4ee59f8ab2addafc9b33fb29a12d5e3943b156d95bd305f62c0d111131b58b431d705ec41a6776100f4e8b1f530f4d6693cc51b",
    "signer": "0x36bc6698D697Dc3869a485812450B1DB1f0a0c04",
    "userId": "400035644"
  }
}