{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632583575",
    "entityType": "User",
    "nonce": "0x713255aa07fccfcb1c4fb0334fac9a76e418f46ef5b53b3e29e4c89a759011b7",
    "signature": "0x27d855c51ad8aa36ee2978f4fafc5409e3b992b74830266c42f27a6899910ec07dace3d47049ed3ab76f7f91c0a5d6a8eaff90d5f463e26527c53659fcbdb07c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}