{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317847",
    "entityType": "User",
    "nonce": "0x9415f1a8999507990ffa2dad08de38779196c3a01710848a4c945f52c4d3f0eb",
    "signature": "0x3240a82e54942a65564afffe1b7f8efc74185b40a57a3495ed822806b0e767ec3b8c9761f93266e5567bbec2b5c06994f306fdd99a512af6137438c33434c93d1b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}