{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6462",
    "entityType": "User",
    "nonce": "0xe79dd946e26bc020a16df6c5e27085c3892f8efbe7a1e5c5e48369d55791a618",
    "signature": "0xbf80575ab8c7c20b5a1416d0166ea032b3c90b59f62ba7e20ddb7d99686f421509391f42966cb053d16dfd40a108ee52855bdd6f8d8f1782e3b278c591d4eddc1c",
    "signer": "0x99b5F46ae3978FB02A645f824e51700B327f1d6e",
    "userId": "97654"
  }
}