{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "481080235",
    "entityType": "User",
    "nonce": "0x19ec7559f6ef2d116b10bfb607a9e0472635d4c9e23fd1ad5a16d29f23b76fc2",
    "signature": "0x7382f976894d42c4eaa5109a59bd59fb9abd4d6c8072932a1388f5aae1f0058f41ba17e2478f21e0e73aac41c702d4abd8f04ffff2f661d4357e0a22808486491c",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}