{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7dbbd68c35ad74b16f9e4de883768573a5983953009fc280a4e18b20e531541a",
    "signature": "0x981d155821c4d880967013dd0b82ed992ebd5c9e572720525eebc3b5a0ce08b25f4b846c78b27bb5539bd6832fce41f6adcef0b8189aa879131e05be5511b4041c",
    "signer": "0x7DfB404f28cD6bB8576F945b93c3fC11185076De",
    "userId": "883814659"
  }
}