{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129814",
    "entityType": "User",
    "nonce": "0xa9f0e274ff172cc84859addb80a17ac2ae21302bddfc7c063407b617cc7951b4",
    "signature": "0x2fff9d786f51f2542f5bb2b4fc355643201fe84d301c41210105c296d71ca11d59309223dfe5e116812e461dabc76794c1a5e598ed86af2aa5b7a715d7f38f8e1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}