{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x0ff16e52ace38d881e812b4ddddd02cc921f75818a951d2b7bd65b9d954c1e82",
    "signature": "0x1876b0216511911fd7f616785a23b128bde9140631512df85179cd7ea97136ca73cf9f6c674227b68a0e14452b6af7a9ed2db9ca2d2330e892244e5e54f81dbb1b",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}