{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50f2c696511389b921430fd115291629a38b923e652708b81be56cf465fda18b",
    "signature": "0x214ff93b3bdb641047955ac26838c050139773a25fdbc5fb749f97bafae5a1f9740c3a0443e96e20481b231952f17163516485ce224de6ca2df84baa3be6b9ed1b",
    "signer": "0x4daC0c968A91B0467f12689ebBF7dC23E84a6a59",
    "userId": "467821671"
  }
}