{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17145",
    "entityType": "User",
    "nonce": "0x9655003ad3261f09532b7fb30f6a7fba1009e4aa073e536dc165481d207f8648",
    "signature": "0x87ecb49c85d2625c3c6bd236d6029b6d2915325c478b8fa52a267cc16e49b0c3428a289f14e0d15eac92d51b73cab5201d4da42796eb299d8d500ac86f2967891c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}