{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "911290367",
    "entityType": "User",
    "nonce": "0xb854c550087335a81665c29063fc06d2e77274f8313dc28803f4b27355f4528d",
    "signature": "0xfaa58c6296880c653116fd7b8883359c50a6af31e3b9d38b8ac31086cb43b74d678cb037db0258b1f8635dbd407e545ab3ccf3908f35a6d263ceedee542258651b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}