{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735700",
    "entityType": "User",
    "nonce": "0xbf3481f2f5159ff0a9f0a12aa00376be293c5fc587d0b2a6374e1d69d738136d",
    "signature": "0x596f14a1757f7041f5f7a16cc1caa5152efad3dc0d387d6f4622700a96eb42e1122a67ec2d5f1d274d34a12eaa59e2743833a0370c64bd5c5ea269d120fe35821b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}