{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0xcadcd7054b41a406bb07bafdd1262f12fbf8e06074d4f82f308b67e67522868b",
    "signature": "0x6226bb5c92624003949b5e750c350c36ae27082e60f05a8caf3e92fedbf2be261f6b0284562916d1b7206b373d2ac39a43ad48dc2bbd9167ce71f732c86656be1c",
    "signer": "0xa26d3Cc8D0F05E79596837bc13c4Cebc9Ac08933",
    "userId": "421871922"
  }
}