{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "998028462",
    "entityType": "User",
    "nonce": "0x1f7b476267c9f4244a8f7fe85d98976fc3d67313024fcd9defb83ea8f0b4b35f",
    "signature": "0x30717af407bb56c1f64ce03c2b495dfffa21df8ed77c79a575f7fe4ee8b540e55248d59bd5caec6c107f921ad48708510b8f1a02506df2f11d6f51dfe0c006081b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}