{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44577",
    "entityType": "User",
    "nonce": "0xdeb7c6eeb3aa13a732149a4e170975bee9f79a18fbcb8ce8d61f0f8617957729",
    "signature": "0x48eb52e310be075010b8977b1390f60c3cb1de2d2971b81b910fa4c35713e5c712bbdde0ef5454ee7ba896654109ae023692ece309ddd2fd9383d8b5a24fb2181c",
    "signer": "0x57B72EB07de2F234F10e779f1Ba99344cEa3B3A6",
    "userId": "873528115"
  }
}