{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0xe5c53e0ca9f1e06b7594be908f5ab0e9cc1e3a1b247f307eb75442ef34936780",
    "signature": "0x4760e0d22304e4dddf279c7a7e9ace72577a7e986a468b3be7f726d1322bf59b4dd840f115a88b7759fdc7de5ed92d611c96f34ebf84368a23d4c2d1bec8d0ed1c",
    "signer": "0xad1E2A70fa1227797344FD6df31327a26552461a",
    "userId": "153162"
  }
}