{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x5bb29cc1da1f6c6d41a0e33b6d3eabd412d0334ddd031d4d2c263dcdc4768913",
    "signature": "0x5ce9df0992957e46fa6e32d9f48d90e186e2d3477971fb5d0683855fa8b264a32bfcb5ec16eae9046a084fdc776a5e98c2a064e7d1c252ce3f7b802a2fc392aa1b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}