{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb22f29ece0b7c491435fdaf3bbe6202f402163d2c5ce57f240cbdbbaf3464f5b",
    "signature": "0x563c04b58229b5988bcf4ef00108be53858391c6fc1b4860547b6265026d143e53c0633ab4bb8015a0ea138a3189a4e1458ecdb39608da59f3af4b6d60e001481b",
    "signer": "0x9A0b71B0Cdf25140e5999C5aB2fCda985E5B0a7d",
    "userId": "269528369"
  }
}