{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2c9ffc7fa17058bcb0bdb62fb2cb4cd72166209e26e53274e382c8f736dc112e",
    "signature": "0x399593b926b91c3507c00ccd8811c0c2573f9e50e83bec6d6f389b05de952b6f7fa825840f4261327a72e0e97d1220978661808e61dc5639b281db669c4ee0c31b",
    "signer": "0xAa626204E165cF56773B93237481330D307CA1A2",
    "userId": "274024446"
  }
}