{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcba166df19dc83ce5a6803f1713a2246d3481934348d07574a0d24841e0349b9",
    "signature": "0x15b5f36ece35b44e9a7db77c0732c21449fab1c2a0e3ccdf782d71c31929d7c772234b27a87b9b1266c7a75ec4c289fb460a27915ce2ed2dbc314e55b81e78ba1b",
    "signer": "0x8B4F32F4508cef97a10477e8CFC5560f961048FF",
    "userId": "232851639"
  }
}