{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73228",
    "entityType": "User",
    "nonce": "0x632dd6fb779de78595e9b74fb2992ec15f06c32ed67895a074eeffcbb99a3062",
    "signature": "0x9b794a85c67e7262c8a78b0cc55821728b7e5304c636a030f0072ef84300c94c49a2fd89fe4aa2019c26e1b3da67e18460e612104a0b48e32853239b2e5306181b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}