{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "983568397",
    "entityType": "User",
    "nonce": "0xafa6e8ad6ec5b058a2f6200edbc293c58bbae8bd15273056a2775cae04c01db8",
    "signature": "0x81b7dcac62c846e1c0b96b7a1701371cf2013ea6242e213118bca0fa0879eb024e3fe654e1cebba6479d07ee81ae846032b45c55c6de6cc6ce94452baee06cf91c",
    "signer": "0x3d3C9a78785e201CD119b8f74d7d88D131bB3cb9",
    "userId": "350266629"
  }
}