{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x96744ea9e936ed2a4c52d2aa71f0b78c9a3e000d08d716786559a1bd14976e68",
    "signature": "0x963205dd36e18592fcf5265b8d26a5ce856a2c75bc2ca8653e1603dd53b161cf2b76cb97e59c4cd63a7e41bc5b17589bd1f408e9764286bb731da48e644e95c61b",
    "signer": "0x953F4550751b9F417F964Ec7338E60E82A6Fc1B3",
    "userId": "237298136"
  }
}