{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230426",
    "entityType": "User",
    "nonce": "0x14715e6d5de35c04631ab2f78eb779f8b44ab30e34cef0cf530b265be45ae78e",
    "signature": "0x3e9d21cc671fbc350d385db02de9b7479507d287d32dd9d2c0d07f3a2e4ab4c6591d34808fd65dc8aed61dcaea279043d47e088729e178d0ea415ec1b37a3b671b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}