{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18103630",
    "entityType": "User",
    "nonce": "0xcf1e321ede46e24d0fe3b2162c08b235a57b720a0150c52973e835834820bcb9",
    "signature": "0xc8660d08f417392b5426d1556914a0fac891d6150f4abe1c5ea75c4408c274280825825a850cc7b5cf9de4c22aebde8c4e2473cd165293ced1b2974fdd15259a1c",
    "signer": "0x07024945569e5721E4d506B01fB850443CF99F65",
    "userId": "871280797"
  }
}