{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xcc69f075c5acd8efb7456163168b0282fd48f400589a07a82e02c5cfa2f5c7e8",
    "signature": "0xc8d6591f67411bc0acd83a74387e184b81d55f094c7a5798c43eef7b4170802e39ae8fa0485bd3f9388e1e5c456ddb94fb1ab64e1e784e42d39b39363d6b6de71c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}