{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617072743",
    "entityType": "User",
    "nonce": "0xfb693aefe789d0360842ce31506363fe879e77642311e6af2b097e3fd832b810",
    "signature": "0x9ec1ad32fc713b6b0e7d6e38ed9024c4fb553ced7c3de4fd3d8f71e189e2a60f5b53eeda5ea7df804429b0e06b5588b1804d3c2bc0970d604fd14c7b13e126cc1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}