{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562530159",
    "entityType": "User",
    "nonce": "0x02ab0b7f7420b3b36ca0347ac1bb1bed81a663b9b4e408bd9c6934cd056be62e",
    "signature": "0x436ab218ef952aee1d0422948f4f6cfbf3949bc56d839b8d8068370f6492a4df231369ac041cc4055c90cd9eb89b628360b0c63c1c5c336a2ab2af4302f7b7681b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}