{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3799",
    "entityType": "User",
    "nonce": "0xb3fa69e53b2690f697a35331c567008b516fea323195f35dd8e59fcda5c36453",
    "signature": "0x9731bc64345c32118d8a3f1d0f4a7bdfc4e9537456a221e0fbc8233ee2833cfe6651a6e9e6bbeb15582f6f1e89aa46c351ea6d1a20718d115fb08e7069f0180b1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}