{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x932ca571029b4fe9cc6d57371879606a3433182d9df72099a2bce3a1def7b79d",
    "signature": "0xcfa82f53bef77ab3571ec08c189389ba56146a27839da003b98f042aa90c4c0b298b2cf9e6c8ce83b30c6990478ac7fa348680039220118607e8f0d25dd59d3a1b",
    "signer": "0x2a14233e1f50922EA23fb817931968707B6A04c0",
    "userId": "727256442"
  }
}