{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x8ed5444463e0674bb04896366ee08be64eca14299b9ad2e9da5eaec445eaa00c",
    "signature": "0x02a75f27fdc1cf2dce2b65496088c0173afdc5254ac180412d8daf092161f140304b2ece0c1522af725aa645c79f192e8a771724fc036cf0263766d9ebbd175b1c",
    "signer": "0x92ff18F46f3E7F4f450c570590f93f50E60a9925",
    "userId": "522564756"
  }
}