{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x1cc1e1f9ba96c68d66c3ebdab1c17fac76f4e16079de34a84479bf1228fc0db2",
    "signature": "0x53ba6746510a65bdf693ffab1f3b537aba6c5c3ce396723631dc46cf945b3d5059bb4c9d45591a610c9c9a4626d9a8ff145752d1422144a25cd4f52920d3e1951c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}