{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3d00d8cf515869f0e1fd4735ba010ec4262268099a4dccab1536c804d842171e",
    "signature": "0x37a920b2453beb375641e9ae3a4b434201b41bc0f5e9abe0dee06ec5907a56c47040d7199cbf09d7d54d1dd5d45e357da7e218a6949f9e048d07cefb461d77ad1b",
    "signer": "0x9598A02d33c36C3B27fde54730De37f7D126Cad1",
    "userId": "665913534"
  }
}