{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x198a764aa3f79b623839a2780d07e184859f4605ac5b6981af82890eb59f66fc",
    "signature": "0x53140bfa682121ac318f95c7c1eed500e6848920da16e9a84ffc1d5d85de133b683266215bec89338ae149cd6616f0f08227636437197a3887880fb7cc5e61bd1c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}