{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x83d6089ff74f456a484c898e88cb64e7517ecf790e5dc61f1139421600d95d5e",
    "signature": "0xa3795e116e92c46dc4ab4974650bed1e867634daaa60c54ae7165ad8a3f3c2b4308c1e0df74c07c6effd7931d089d2f0daf7f3e314b2d37ee726d3600c9c67381b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}