{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15419",
    "entityType": "User",
    "nonce": "0xb1d9d633c61bf43ccf77d98c97c181f48171c70e4be59cf21e724c86823300f5",
    "signature": "0x3cd9bf5163fa120b9b89b7c05c0e7ef02eebce8cfbfcc81e5ebbade091f1165d1a26390f676b75ded07a1c985f41c8a735b542e8ca57dd5d5039b474aa4847b51c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}