{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "842214964",
    "entityType": "User",
    "nonce": "0x4b0ae3b7fa0a3accb90496bcc47f32657a8cc33d036792400c21b7fec666808a",
    "signature": "0xd67b6106d4148ac1b74fbe2857c73a1419dcd077bb6abacbb14d040622f39b8d0020badc9579e153c47a20369152ecd4d04ba06164af77f92871fc009ba46bd51b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}