{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342017",
    "entityType": "User",
    "nonce": "0xf3442777f943584df2761cbd29c58c8648422f2a49cb0ba411db9e1279db2968",
    "signature": "0xb345b44f1272b76d8220ffd81ec4dd22a6ca815936d37af1c64ba4d3276eef683545e8e21d054e82b1810387f0dbdab653de912bc953ec907a7de59b43c6b09e1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}