{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "853042987",
    "entityType": "Event",
    "nonce": "0x8902269e34bd6bdba69cd0e16297ed88cc007231113fa11db59f7113cf76cfeb",
    "signature": "0xf4dfc5fa8862ede388c6a6d4ed952eb7ad4001d592ca537f05d1c8991c0472fd57916078addd0d52d15d729e5b6362caee4d1c3f9cb975e2e26271ebfc4e3dd01b",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}