{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf3b84b421fe2e7c3c82e52acf8ad3df8907f3f4a09c0bd68705c0c0f0737241b",
    "signature": "0x6d82d35802166c1458813c324b400045c07c17bd32391f867d02aa0b5f5700bb1cc6d527675a4aa0a9488bbfd592a7130d8f4322c1523e1d2b70d0f983e0e5dd1c",
    "signer": "0x9E7B6a4F43641418e1A2179f802949D607191419",
    "userId": "594198919"
  }
}