{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1690160",
    "entityType": "User",
    "nonce": "0x000a287782c1afb4bf1bce19f0227f9c5c1b94c8ec716da516da3d29454b6659",
    "signature": "0xa364382a46e99c5c0b262aa4a7f2b22cadba7744454e42df1ec42495711c27863d6768d693ce2145a0652f29c490ce1c22ea3045fc5dff4d75fe0e94c614168e1b",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}