{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231799821",
    "entityType": "User",
    "nonce": "0xde3216f3820775416ca6e2de817b8d739fb3d3aa240937425d9b9ad8bf962697",
    "signature": "0xe5bc06136a5fd2e13065407f35e1a2a8ed97e53adc3bbbf79d0b9510260fb74068fcbdef89758a0b5bca3d3ee1889faf3b96496bcb9dedf1fa943c12136636d71c",
    "signer": "0x85f9d440b61768a3EcC7D5bD2307a38caf322BED",
    "userId": "242102384"
  }
}