{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x9fdc1303017d9c4241a40f4ed72ad2d518226e4a4297d4933d62319065e2a5cc",
    "signature": "0x0ca2a60b563fb74195ad72aee85fa051a6191b4124e5d4304e8f8754c0d0db55784f557735fffa1bd999b200c430f28444f53e680d6bed998772c6dee80e26201b",
    "signer": "0x2F55f68a6D874d95E4F8c2A7376Dacff6c7b8518",
    "userId": "546609624"
  }
}