{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987917950",
    "entityType": "User",
    "nonce": "0xd516326ac990f250d98ca0b4bed71fd5604edd328e31e74f23818e4f47fc668a",
    "signature": "0xc8e4eaa49cbd33eb2b4adc9188cd416f19d490eb91b144f0931df4c7fd4beefe6cf7b2d1aee483fcd48d0121daffa4bd03313da6d6b48e5d4545da074e851acc1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}