{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "675030926",
    "entityType": "User",
    "nonce": "0x8d1ebd167acbce24a92f6a02f126a13e64ca7da06018ea106fc7ba072755edb8",
    "signature": "0xa768ce9d6cb555c1de733bd09a6ab04fef9eb55283b0c1e304cc9f4aa6618413402ce21e62805f79541b6ccca2baebc91722aebab434565bcae8e6f7c8bdac021b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}