{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56151",
    "entityType": "User",
    "nonce": "0x840f154408fed05beb93f24f5c9c13b5ad90ca6638c7e0db56be30a2ee2dd79a",
    "signature": "0xcf2ed83caa8e320c88d5390c2423744b9b27522c521489278b21d1cbfb416bf3766bfd67aaaaa56cf8d298a375efeccbc2192116786b5540518517a58bebdc331c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}