{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11d346038d4275e8f922321fe6046c933ce52c7a106bd1766497ae8159f49d34",
    "signature": "0xb9f470946213a23066cc87d91c677ec1411ef028d53679c1350e6985488db19e7936f9fb96696da9e39bbc017b284fd11e3827cc8a7cebd207cff091462315321b",
    "signer": "0x562d701e09E88e818447e49C0381AE38401067A9",
    "userId": "714495405"
  }
}