{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb9fb485ce8b69d7259e7195a1f2ba4e493cf1cbd4ac2d8e7f69e52d0b535b46b",
    "signature": "0xb05e95948e3cecbadeed27d0c694bff7dda02f1d3eb25f4673156a458e9dd0af78eea4f5d35ffe86cf7536fc80c769d576bc64fa79a68b53494c7b89541fd01f1c",
    "signer": "0xd0b8048AeD1D135a87A8FB83Dc75909a37af17Ce",
    "userId": "356786140"
  }
}