{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "622",
    "entityType": "User",
    "nonce": "0xa5bd4d21a2c20d5490406da8c0b6423a9e74d3ddf7f284fff38ee3b7253c3bfb",
    "signature": "0x42f31dbf25c232e3fb2811608b3bbf24df7ad9281984f42fdc61f1b263440f1a3e0b805a6b67af4ebc068191b6136905743c156ed411ea6d2c3625e308edfa201b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}