{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "132489194",
    "entityType": "User",
    "nonce": "0x89b9e1ffd4df7be4ca68c9af6c8affe5690905fa77800a50e24fd774914fbfaa",
    "signature": "0x7528453d0accd925b850a3962f1d5c4203a41486006f2c41d40c2ce68932e35006acb881ba62c24f5ed1ff00e40fe6677e95f618dea1f283444c0b7a71dad93d1c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}