{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9d9bcfa1374db293dd3774991cdf14e1b2e5eab6151be7510b5a337355e0ce1f",
    "signature": "0xd40ab02e9828d1c53c5b29de7ea24d74deefb4ec3855b28f0eff6da108f64f7444dd3713644f6dda674ff6fc9e717b66206ae434d3886a19b0270ae8a2e036e91b",
    "signer": "0xe7101eB0149dcE033b65145d70290bA4B9a53A87",
    "userId": "920921935"
  }
}