{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "955974066",
    "entityType": "User",
    "nonce": "0x0dc00868d55fd855e474050b2ce2e0c1d6c7dc4e4a05660adf6288316d8917cb",
    "signature": "0x81b6f13f7b47e37edd36a26adfc9f3ea04452a1379fbb54ab1490818bebbeac02f5b90d08d5b0a6105557793e4f3ecdda7b8b90ee4ce8cb60c474f5faa5d746f1b",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}