{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc9d310b844c21da96ee6e9cebe1da6bd2a137824cff53995c7ba6cf84855523f",
    "signature": "0x0c758b6ecb2a5236102f8e664d2d7ad92900061828035d9dac680fe0f5d2e1f026fc48290db4a64f10319747237fe78511db04814111ee56a986586307fec9671c",
    "signer": "0x14ab7027c19a202dbEA7a9218aa291D424d901e9",
    "userId": "111579"
  }
}