{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x219614fdfb4417b0cdb8cd609fd25571dcdee2fa2c3dd625b399bffc4e9774b8",
    "signature": "0xf9bff880ab279d83a80952ec2d6291beaf5d866573fdfadb3c5dc8d6e930b1fc6e99024364fd65df2c231e339daf30ddc59772b86176cec1c79a3dd3dc35ca041c",
    "signer": "0xc11D28404f39623f2A0d9D9eC6D9E5e4C8e06fEb",
    "userId": "563998093"
  }
}