{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "675238",
    "entityType": "User",
    "nonce": "0x8d9ef3bc3e33e2fb58dfb3cc3bca41b67f8b4ee993c59a3006ab6b21e36cb9d3",
    "signature": "0x09c52e5d1db4f59debbc5413d40aa0b17298b936fc0d285ed9aa31b970b9691d73cf151a965ac030293b27601d2f9649e3e33a85be88b13005ae90bbdb44627e1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}