{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x56de8c2b96d88a9e35986dd7e62eab2e2a6ee462971abcec7f9c197871cf51c2",
    "signature": "0x9dc315b65c42b8e3f5042b7b63c44aa80a5fa1990267e8a8f117df3a05494edf43bc3e156076fd60b2f7378533f763ec15c03d28bc10b5cf754afdccab77b2c31b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}