{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1723116",
    "entityType": "User",
    "nonce": "0x9d6fbbacb29fdb74303484d04196c3092040d9ffc297fbfb8ec0f9d9f2ab1cf4",
    "signature": "0xa16d5ec35537877e0aee20a4ce14960bcbe189f43a718ac4de6a5b4d2c01882b1cb76b0df4adb40610fdb376c1c07c8cc4cdfba79d466b392861666dee00e8671c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}