{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "369391511",
    "entityType": "User",
    "nonce": "0x14ddc0e6476e4aacda17790dcf9732fe2f726962507355600621262bb1e75249",
    "signature": "0xa2423bb32d2bafcd8691e5465a8a5e3fff24e3cc33b3fb50d9574091f1bbd8e5601ca618415815d54bc41badcc4f9c2ca4d1709f6d14d5d882258a0ca360e2111b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}