{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x20faf082d031a58775e5108c9d7ed6adc55cbaac695874b79558601b78b5283f",
    "signature": "0x2daeb2853743edd0d25b5151f7af1c6192b088e17875c373f2d5167a0d601d744c715bf8d507e404addeb90c3234fc2c92ebc1d28784187b38a438eafa8952471c",
    "signer": "0xA316F383418F855219413d2CE97fB46cC5F87aCc",
    "userId": "175353"
  }
}