{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0x3d3dec513dd3275d272ee1c13bfd6926ca14a6bf329cf4eb826d48d711f8f2f9",
    "signature": "0xd5f3d7a709c6e603dda47437f3d2ac07c35a14596dba210b5b58b6d16cee71a722e8e1030fa85a11a316d95d0b630a502b7c82fcd8b9aa0b43b9b8a990dee38d1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}