{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "300177",
    "entityType": "User",
    "nonce": "0xaf31dd46a937e27de0e82ac573bf89e37a45c6b97bf5351876160858f7df6b08",
    "signature": "0x9b3743e66ee12691fb545aa2b54c0f12c29c4f14a5515d54294a21cbb05e52d53594f9c78df20a9d8fb0f80bb5b834fe959301c7beb0e115ad809fb8c59f8cd21b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}