{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0x575f81d63f3e6f6e63d4a5709559137520c9b575ff1ca7ce2a5ef0a843c2ec5d",
    "signature": "0x76f97f29cdbb6cfbbd8a1c33909564fc2e77c7d43d63f7223576ea59d3e1856e461ae76f59908472ba427e20271c4aca3047fb3802c5afcc6fc8ff45d8176d181c",
    "signer": "0x07024945569e5721E4d506B01fB850443CF99F65",
    "userId": "871280797"
  }
}