{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7187691dc2b99ad95b42201802ebcfe50f040f1952820223fb2c3caadec0466",
    "signature": "0x7935e143750a1cdc023840d71434850047c01bf585fd3352a5396db7bde0f0e3394e8388d23085b31bb326a02563e56cdac69b1772a49daf785c0cfbe66dc1281c",
    "signer": "0x6230b5bdF02333c0180266085036F2DBb9977d0D",
    "userId": "570701364"
  }
}