{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2703",
    "entityType": "User",
    "nonce": "0x6ddd1dc102505dd6a90e123538817db52219a5801c010ad8107661fa3cd0686f",
    "signature": "0xae0b8b555ab4fbf5550b25c9758aa4765a7e9a68d235955812807611a804af801fc253500645bf303d97d286568b5d839b0b2c2f529926ed9038fff3e85da0f81c",
    "signer": "0x91A0243d0c4b44cB682cB60883cB72C26a8Eda55",
    "userId": "298293683"
  }
}