{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x79201a4bb98c54e80e6f5e3773134b07d9a2901d8a9b2a5673ff9a61d8a92d10",
    "signature": "0x8a3cc3736345bce3a8f154d677a89242dcb03996c031363614515a53af84581137d9760f24e33ba5018143444a8a4c9a2ac05fc86f5f3f4e37dd820e5536a9e31b",
    "signer": "0x80B32192ce8F9b3450dBa022af9F0cF2a3Ef0094",
    "userId": "923732594"
  }
}