{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916757808",
    "entityType": "User",
    "nonce": "0x9dace3c4878fc9caf0fe535433ee13f6d32dc01082ec7566d27e83d55b4d4479",
    "signature": "0x89cc4fe0e5b1cb7a9dc6fa469b3f73345d33b8ef9936660ea7c55e01e8194dd77bb90cc50c47cde7411610ea991bf9dceaba80648b8866d68d0070b04c9b13fd1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}