{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0xb04e79862e315824879911ec731f6651be7ee70fc0349f25a7c2b9aa3199755d",
    "signature": "0x62b25ac2d6c361be881126a5407a564224fde23eea78100c345525b3fdbab179122362963b458bf3f4eb715b02425458989081e7346b36ff91d1a49d48b829141b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}