{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994858715",
    "entityType": "User",
    "nonce": "0xd3d89abd768bdafac85d359251aec8a74af2cdf19c9ddf6a2b8e5e0aeae30ad1",
    "signature": "0xa4f910c3ad4dfc993a0249be8b97625176c45691a18e87a4eef588c37bbefbf5595d939dae37f308780839f1c146648e1145d7d6ccb18a178ee7f03f80ea0a8b1c",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}