{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15775",
    "entityType": "User",
    "nonce": "0x0ba1cc402ec4b30c40458054f9cafd1184b11b0fd2c09018c41f1d85e0a90e26",
    "signature": "0x5675c17991ad917df4101737dab44337e53c235236d9866a566351061673a61867e455c44bf86249de70c7ebddd5a393a062361e40268839957bc6519c7ebeb01c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}