{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x6f1c1dc89b8c2d22f97bb9072c9e6dda42c32558ebb5aa92577f90afad9729de",
    "signature": "0xe7df588d2d3bc1f88ded1e7692e9293d52c2ae5aa8057f0280a6a539d6c45fe71f14be45c61e5ee140a614ddc492b748a2cd23ac170bef08b762c211676e33c51c",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}