{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xb7b4d79ed4784b8a62494637dcd0b10e27f88544bf938c485465759d0cf698fa",
    "signature": "0x7e5d00adf7717b4d3db706501142573d2b716c8ff29ee8ff8d8b2de54a22dd5677efa5907319935a5a860b413b694ef4e650c0aa1f662218fb4cb0b3cc79b6051c",
    "signer": "0x9a0fce0dD988cf6e406875F1Dd1cFDE377959EBA",
    "userId": "620773123"
  }
}