{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208489322",
    "entityType": "User",
    "nonce": "0x249e8693e17ce7138f6bedc52b2d2b16745871b8cb7a5c713dc6b85f56af213b",
    "signature": "0x23bce86074d45d730111e10f41063da26aa1f622f2ba4f987e6d9a984b71e09c5e33e8387030e6722a493d9bdbda9c481f5119acebddf2740c9737a907f4a5461c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}