{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327343",
    "entityType": "User",
    "nonce": "0xf2f9805c244a41f97c348b835f492ddf31f57899410b98fe7b6ce07fc1fc1f5a",
    "signature": "0xe85c96733563522c99d588c1d1f62a04a16dcc3aa4f35274e30d8db04eb113cf32d3d55aa09de1093d8fdb9edb9fdb0c28cca1e4000bf6cd8a3cabdcaffc1e2f1c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}