{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x75faf689a825033cde9d8e4e3b04264a9dcdd9f12c8c2f17109d766672c139e4",
    "signature": "0xeb3859a5c959ef52783ec6267c266d411e68d866a590d7a4f344f523896e8f717822c6034f48ef84b2a0d9b91848b0b0bf24bb4b80a0455adb31a4603bc31d2d1c",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}