{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xfb76970018af230bcbf1f171961736a650a4b3d189c88fecbf9d3bb2e4636403",
    "signature": "0xe76c939905113e45a43d62757dc37ec7bd950bb080856799bf7b8da31a071e5e64b2b3dde203696388bf2b206182701dcb4575d4731fb14680ff7eee6b92d8fa1c",
    "signer": "0xba8641093D46591A527082dC8064445CBFc9215B",
    "userId": "943343792"
  }
}