{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381563",
    "entityType": "User",
    "nonce": "0xbbc59095aa604c5c1a11c64e6f737d9378b70d2bf04d055f16964ded603600ec",
    "signature": "0x4835d79629d0fcd44b1ac917bb3e860f65596da13022570bb998d52e6a831ce84385917992313af4e94221a99952c9e5311e3e8c08194c4eaba535c093fc98c11c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}