{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "442306",
    "entityType": "User",
    "nonce": "0x5145cc97d8430bd80282676f9dae93226ac8ee60f5f1362b94a040e97e6e5c6f",
    "signature": "0xc9fd889195a3caf5e26cb29f8d2c0118dbe06eba6a072ef45e2d8d595ee469e332cd833c5f8ae42a489bec7bdfa77a99986aeb4e4f84785ba1c5552c29758c511b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}