{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x850c22a57ebe7c94fd7608253ae2b37aa3824d53bfe941c96b7d169d09a1b6b0",
    "signature": "0x1d79602d4564cb1e52115ce23cbb5b6464233d7f027ff52ebfa21b29eb803cd8427a98b02a60868efadb8ad8436788e82d1838effee115adcc84d01813dcf90f1b",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}