{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "675741",
    "entityType": "User",
    "nonce": "0x247e9b7d535bb96adabeab9d9b079d6899b4c02841928c1a8572f29f7630482e",
    "signature": "0x9bf51338cb19208af22f6dbed2f988f22073c59394261d5f06c830e566673251363eed1c8aa3455e12a15e2dbf8de23370df3d5d143c48a71c1db4125739e5cf1c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}