{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0xba03c38cad792031cef69b738939790859f51644f6ea863e7c67d794557b1de5",
    "signature": "0xeaabc493a9e6fc8562d8589a6bb88c561b8f2a6dc26db77b44b06ec9c6240c6d02a6f62aa080615caf0b8d5a894ed07929ca7e924a7d9bb1b6267dfdf5b5da671c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}