{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979460763",
    "entityType": "User",
    "nonce": "0x81ba41682fa7ee1bc6426c248f950ac5b9dade234c1e6f1ebd318ab301432cbe",
    "signature": "0x4563a6efbf8e3b9f9937093db2a8196c7425c89b83da0caead023a27d68558e5205883ca312a7b33a2ee7e4ae8b1ce4a3db40ad86386a40c8030e63a49ee686c1c",
    "signer": "0xc74a5C0B76bF95109EFE2119058182fD3D75EA63",
    "userId": "222972690"
  }
}