{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "349865",
    "entityType": "User",
    "nonce": "0x16b1b7547de8bc1911dda286ab703aa6827d208137774285621d2d4dc726bc55",
    "signature": "0xc1047d50275927e741bdfd1eb993269653e410ecc4b540d95d0c7f655e15836f7642ccad32cea9c20b3ec9c02896573d8282339bb9b929d319e6bf4aa7d12a6a1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}