{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41682",
    "entityType": "User",
    "nonce": "0x18f1530e1700042d2728adfa6c7d464f3aad65278bd14b3a5e1d192ba5dabb16",
    "signature": "0x61adf8444fa684ea86edd4a0f09555fbfe02ef1de4285ee0f0e9db6d0caeb7701d5562658439adce0f51c96948fbc61c9cf3a2530687238a2c50a7404bd0be751c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}