{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1934437",
    "entityType": "User",
    "nonce": "0x06c4c6ea4a650ea619b826bc41983cd3e33d2ad4803b343745237468c023ea90",
    "signature": "0x291fe03906092d09607366eceabd6851f7ecc52fc6ea6213baa785ad3ed0d57b6024a80818ba35c1c561d9478b15b1b83ff14324aa3fc16e71eba0e794f5238b1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}