{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd6e34c7a7520efe16fcd33abedecc75f04c7ca89ee0f08fbce87717a72757e41",
    "signature": "0x23145b3389fea858c23ae6162ed9e5fdaf694ec74f4e721bb8f28f2bcff53d702cc88ad810ca76f8960f9c244815ee1fa052225a4bc776815220210a1ca2855a1b",
    "signer": "0x2027077f72cDe67b9d8eDbe020290d8ad0bAd9b4",
    "userId": "732347486"
  }
}