{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193140142",
    "entityType": "User",
    "nonce": "0x6a6f126a408649e17d03018ab6cc20c84cb4d9e05949aceb77bfe542ab7a8ac0",
    "signature": "0xa810ddb1afc3359ea05733ef921c3eb29cc556641cecf817eee2e09d28c869062631f4875844f19a43df8490701502ff215cd5a88aaa614e038cc5797b08296a1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}