{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4591",
    "entityType": "User",
    "nonce": "0xb09b71689b196c11e82af8cac865c92d6c19e07eb3795a344c70216013a1906e",
    "signature": "0x018f252c36f556fc1f37120d25bcd701f4f0b1152c549545a1dea8693468262b394f4efa5dc46bb45234433bef44c5581f0ba262c70e2a39ee746ab5d7bc6c4a1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}