{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2be59024e0d97bc43c5bf5d4a27b2e45a188f14256b7f43a8fa75c93e8ca4f83",
    "signature": "0x8fc82191c5825a23778ff29944e3305e00e4b582fd7f7cc85d28412128a0594e35f7ed0d8a9e42a0fe2384e55fdc0d1e6cab8db7bada29a2763b76f0f5eebf401c",
    "signer": "0x20bCEf037EaAF1Dd5a2087f70684bCBa68eb5b83",
    "userId": "750904605"
  }
}