{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123836",
    "entityType": "User",
    "nonce": "0x0108584312225d945bb63d7117a7104c71479d38b3a3a18c3642093824de954b",
    "signature": "0x02f7ac8ff3fd8e5903430932ee126e730b9644eb028581eb243512c0a776793f65c8460b6649bf0e20ba3009ebe889f0ad4924cc8a4ad1227b60ab5715bf31f61c",
    "signer": "0x73C69e0c0a50f0E228106C863e362C350a86Af87",
    "userId": "190031"
  }
}