{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "919989208",
    "entityType": "Event",
    "nonce": "0x62c3a848b73223c2bb21e668950b3b27a2e8210d9b5c547acde0c64e0a5dfe4e",
    "signature": "0xc70852110e6377eabdefd88229236a116696779160b0d835438f5276c8d5c7925a9c4bc1831e1ca154d9fb7a2dc737bf606eb71a0685426e64f3b4861041db731c",
    "signer": "0x18a7B3405E81900d8aF72d98D5f2C54e2C988f9b",
    "userId": "42634173"
  }
}