{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x4a3c9613d829f97a71371fe35f88975a529ffbe3f8cc1049bd4bc9ddb9eb98d3",
    "signature": "0x7edd65727546c17ff74aea49e5db497ad238b32297e34ae4c062683442e7941d77bc0d30209c0d08bf24370b0dd8f614fae68bfa45aa2762032788c857ce0e8e1c",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}