{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447241",
    "entityType": "User",
    "nonce": "0xb89d252125436868b9339c41ae36338d045dad0ae612bab8dbb4562feb5bdf50",
    "signature": "0x3cd176cbdb64aef48f834f3e75f31a13b9664bfc15a634d06cb650e6c3d9c9d172e3080d6029cda5911fda574fe285a82bdc24647835dd1b5b76efc5dcc41c9a1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}