{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xd7e93fcf48d6f7df088b667e58d4a07b9db314f48c78a92c0db916f92474d2d9",
    "signature": "0x1dd8d9697fe001bab1e9f886188dc6be8aabc3a9cd43d30524a3ca0cc12acf471e96dfabd808d775024f590750a8fa938627872bf8e02652912013de4419bd341c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}