{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x076fa720ff1154a5fbc51c25b205802b0888b7cfca7226124258280109f149bf",
    "signature": "0x541862a757a3c8d60f2709cc0451d10612b664531bc4e6cb18b178bf0d64b04e45cf044906eaf6a4c0695b4386bb6f990200a869b0275096b796484253002ad01b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}