{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "833590211",
    "entityType": "User",
    "nonce": "0x4e880451a20cfe2371208062400070b37ca70321610b8133ec743fef24522ea8",
    "signature": "0xbac21b9dbc7d89cd31920999acee4f3c71b5f868ba937cbf669dc5a8d85ff3062bfdc444841a8dc8d1e56d63e95dfa236500875d6f7f0377f0eed8f79049020a1b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}