{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987235245",
    "entityType": "User",
    "nonce": "0x462f29db631fc49fe55c3f1c2a420732bba6fe521d0fa8e26a7e3d7b96309bc8",
    "signature": "0x14f7ba7df4fd4fd36243978e861c541a50e61394b7e523adec7ad332e10dbaf1037154f6c98dd8d26c4f9a38914cb6856611418444fcedac73efc9744fe0e8431c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}