{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd62e012808a82ef1233db142b929a5c56009fa40b260e7867abb6e075a3c993f",
    "signature": "0xc2e3aa06e682a2187e26f3eb4972eefa2298386f47bbd2ffd6604dac00174bd8730947029b7cf0b7ae31e60de6545524711b3ec093b2f7e7013d36a749addc5f1b",
    "signer": "0xfB5477237f31757fA2E881A769a1A86F058053f1",
    "userId": "507929173"
  }
}