{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445563245",
    "entityType": "User",
    "nonce": "0x34153380ed2fe36a2bb30e597d0d5bcb80634e2e47dd7cd9794a261e851ba04a",
    "signature": "0xdfc677d6e400d8b7a17f1f66de70afe2946b54ad3d64075212941f52ed6ff9af077aa06c1a0c2d4bd3c136da1cb423845a197ada0551015189c7889aceae50bc1c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}