{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x599d0bb861cf36d18377c149e09b904d0c15fb8b99cb8fd2a1a8dd1b9983cd59",
    "signature": "0xd0d1d59ae62388665df35cbbae3c21ac65a6781ec4ef8537f28d99c28e8c6a6474c3cd13b080230bab91df13becb649d518904924fdbf95269df116680ebd51a1b",
    "signer": "0xCca03E7a7DF8E3D6fCfBFA90F5735F6e8e2812c7",
    "userId": "243114379"
  }
}