{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xc702a215085f7a6632a93cd79809c3592d9dbedbb43c34ae168c30428607d39f",
    "signature": "0x72462c887694515cdc2ee2f2077ac65dd0bb3e8d0aaf7315298f83468f5afae2765a9cbd27bf61ffaceedb787315274c82a14b11ddb1c2bcaf82cc227066ff661c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}