{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392127",
    "entityType": "User",
    "nonce": "0xdc611d550ccb0f7ed5b8bffcef1f8e78d77b96149af08436eb89c25ddc80df5c",
    "signature": "0x1971101ddb36a34bbeebb06cfb2e869dba8baa9108035f01911d304d2c153e2617fc1ea4c6aabca8fc0276e09ca9ee9c1eddea403859139993f1922cd8382bd11b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}