{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "768479471",
    "entityType": "User",
    "nonce": "0x30e5ca3a5956ed8b501291d900c29caa8b21e446a37a77da61882a00786af9d9",
    "signature": "0x2f5bfce5a9793059d6b113bd6c037796d8d2492469053089dd5f5b00d52462f654440eabe6fbe1553ba5f63f44e03e1295b22f883f335bd9101998fd2fd42ad81b",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}