{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188956",
    "entityType": "User",
    "nonce": "0xb72c081fcb6428dffe9c73d9a95f9f7d290ef16745b46e6b8c8702fb7c925e84",
    "signature": "0x8105705e365a9051293157c377173543c01e208307106548947f46c290deeacf3bda0a865b770b7c44af48b1ae37133ed553c140ff4242b215f9706f90f3be421b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}