{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2a5bf910d515a98cc0a6aa1251cfdb77a1a199131321a0fd9c1d7cb0f795ac4e",
    "signature": "0x365df68cb39367009386724c88c254a0590d2639eddae5c35b68ad5bd901469a185d14258a5a84c229c3315224aaf4f1471923745ca884ca072df77b9c94a0a61c",
    "signer": "0x04a30ca71425FA82e94421468465fe9F9947573D",
    "userId": "734900832"
  }
}