{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "547969682",
    "entityType": "User",
    "nonce": "0x8dedd1bf466d5cc321c52c3592069c2efebd6eb5d2cf9bb66664672f3c327691",
    "signature": "0xd3ee801275a27018f32548297658683fb9f99fe105a9761939d8c774d7af91dd1a447435e8d7db876421efad24b25205e58ccb0c87485eda9b4800f865cd49a21c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}