{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xec0a789ca772d74a82740892d838c594f39ee309acc90cb538dabb5a87dfc859",
    "signature": "0xaba652ba7a87fab76d7aabacf19b5e8bcfb8cacb4afbb02f99a16c7c5608829a77c88344ef014661dcbcda9268fb2bac603e459836941dd91272c467dd950d061b",
    "signer": "0x1C967bd11e6d7a6d09e7071Aef32Eb0A5EdC43E9",
    "userId": "764322722"
  }
}