{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943748539",
    "entityType": "User",
    "nonce": "0xb834448e134d9148fe0bea0f6bff5ed7e75a7d3f862eaccf5272a120e5e7fb3b",
    "signature": "0x33bd604df548d36404a29baa21ad92136c410dfa6d84f7dc879457e155e6a9210c8c5dd94baecb2a5cb3743789b340ee7ded48c7531bd752347523e2f400d1201b",
    "signer": "0x5C13CD392EcB86FaceF8A07FC5B300833E86cD23",
    "userId": "167249"
  }
}