{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2411",
    "entityType": "User",
    "nonce": "0x5935d1fc92a14d27a632bab3c806780c536ac4f19637eaf3ce8152df2f895964",
    "signature": "0x68396142ef3807e74cfbd0f93c9118ffddbf52b75f818c99f0ed09b9ccacbd2a2d0bbbf717c3891887b4dabda79cf48b62c0e6f8c425021755d4efb3a3fb2f7a1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}