{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758607",
    "entityType": "User",
    "nonce": "0xd490f59631f6fb4d75ef1c0a7ed8b80899a91b4e6709fb3a29ee318fb83eff55",
    "signature": "0x0e44f42423e949ed9d830057255f2a6afd1e57993142a1e9aa7d298da4ea4c7d27b6718bcf0ca09140281ed05a96472bbe745fce267819c471bbc354679994031c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}