{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "737872723",
    "entityType": "User",
    "nonce": "0x0e5f844ffa55768ac992d792f554020f997802230cc7b813fe5010133cb503ca",
    "signature": "0x3cb548f169a75cc626628c762ef0e0f9a60e85e0c0ecdb775a35c118ae20f61922eb69b22e21324c428e533a82788c439a39552d1db7eeb2af08d290d2cbe3f91c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}