{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6250986c4a6f901726d4cb400971a699bd832241c233d5f9231548bebe021ae1",
    "signature": "0x09dd984a9a8a7440382d3aeb18e077a7fd2c7ee225032eed7540cd88bef9549d03db112570497f9fe617b81f9df5ebb39ae6557c90b965d0d95e7237409328571b",
    "signer": "0x1C09751B99a572c9F126eDdB2293952aD095B442",
    "userId": "625629925"
  }
}